149636745 has 12 divisors (see below), whose sum is σ = 259370436. Its totient is φ = 79806240.

The previous prime is 149636731. The next prime is 149636749. The reversal of 149636745 is 547636941.

149636745 is a `hidden beast` number, since 1 + 4 + 9 + 636 + 7 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 66243321 + 83393424 = 8139^2 + 9132^2 .

It is not a de Polignac number, because 149636745 - 2⁵ = 149636713 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 3325261 = 149636745 / (1 + 4 + 9 + 6 + 3 + 6 + 7 + 4 + 5).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 149636745.

It is not an unprimeable number, because it can be changed into a prime (149636749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1662586 + ... + 1662675.

It is an arithmetic number, because the mean of its divisors is an integer number (21614203).

Almost surely, 2^149636745 is an apocalyptic number.

149636745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149636745 is a deficient number, since it is larger than the sum of its proper divisors (109733691).

149636745 is a wasteful number, since it uses less digits than its factorization.

149636745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3325272 (or 3325269 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 149636745 is about 12232.6099014070. The cubic root of 149636745 is about 530.9000311875.

The spelling of 149636745 in words is "one hundred forty-nine million, six hundred thirty-six thousand, seven hundred forty-five".