149597505 has 12 divisors (see below), whose sum is σ = 259302420. Its totient is φ = 79785312.

The previous prime is 149597489. The next prime is 149597521. The reversal of 149597505 is 505795941.

149597505 is a `hidden beast` number, since 1 + 4 + 9 + 597 + 50 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (149597489) and next prime (149597521).

It can be written as a sum of positive squares in 2 ways, for example, as 53714241 + 95883264 = 7329^2 + 9792^2 .

It is not a de Polignac number, because 149597505 - 2⁴ = 149597489 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: 3324389 = 149597505 / (1 + 4 + 9 + 5 + 9 + 7 + 5 + 0 + 5).

It is a Curzon number.

It is an unprimeable number.

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, 1662150 + ... + 1662239.

It is an arithmetic number, because the mean of its divisors is an integer number (21608535).

Almost surely, 2^149597505 is an apocalyptic number.

149597505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149597505 is a deficient number, since it is larger than the sum of its proper divisors (109704915).

149597505 is a wasteful number, since it uses less digits than its factorization.

149597505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3324400 (or 3324397 counting only the distinct ones).

The product of its (nonzero) digits is 283500, while the sum is 45.

The square root of 149597505 is about 12231.0058866800. The cubic root of 149597505 is about 530.8536202641.

The spelling of 149597505 in words is "one hundred forty-nine million, five hundred ninety-seven thousand, five hundred five".