149708565 has 12 divisors (see below), whose sum is σ = 259494924. Its totient is φ = 79844544.

The previous prime is 149708551. The next prime is 149708567. The reversal of 149708565 is 565807941.

149708565 is a `hidden beast` number, since 14 + 9 + 70 + 8 + 565 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 112656996 + 37051569 = 10614^2 + 6087^2 .

It is not a de Polignac number, because 149708565 - 2⁶ = 149708501 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

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: 3326857 = 149708565 / (1 + 4 + 9 + 7 + 0 + 8 + 5 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 149708565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149708567) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1663384 + ... + 1663473.

It is an arithmetic number, because the mean of its divisors is an integer number (21624577).

Almost surely, 2^149708565 is an apocalyptic number.

149708565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149708565 is a deficient number, since it is larger than the sum of its proper divisors (109786359).

149708565 is a wasteful number, since it uses less digits than its factorization.

149708565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326868 (or 3326865 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 149708565 is about 12235.5451451907. The cubic root of 149708565 is about 530.9849549399.

The spelling of 149708565 in words is "one hundred forty-nine million, seven hundred eight thousand, five hundred sixty-five".