149595685 has 4 divisors (see below), whose sum is σ = 179514828. Its totient is φ = 119676544.

The previous prime is 149595673. The next prime is 149595701. The reversal of 149595685 is 586595941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 586595941 = 15073 ⋅38917.

It can be written as a sum of positive squares in 2 ways, for example, as 32285124 + 117310561 = 5682^2 + 10831^2 .

It is a cyclic number.

It is not a de Polignac number, because 149595685 - 2⁵ = 149595653 is a prime.

It is a Duffinian number.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 14959564 + ... + 14959573.

It is an arithmetic number, because the mean of its divisors is an integer number (44878707).

Almost surely, 2^149595685 is an apocalyptic number.

It is an amenable number.

149595685 is a deficient number, since it is larger than the sum of its proper divisors (29919143).

149595685 is an equidigital number, since it uses as much as digits as its factorization.

149595685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29919142.

The product of its digits is 1944000, while the sum is 52.

The square root of 149595685 is about 12230.9314853776. The cubic root of 149595685 is about 530.8514674709.

The spelling of 149595685 in words is "one hundred forty-nine million, five hundred ninety-five thousand, six hundred eighty-five".