149557585 has 16 divisors (see below), whose sum is σ = 191095632. Its totient is φ = 111974400.

The previous prime is 149557571. The next prime is 149557631. The reversal of 149557585 is 585755941.

It can be written as a sum of positive squares in 8 ways, for example, as 44515584 + 105042001 = 6672^2 + 10249^2 .

It is not a de Polignac number, because 149557585 - 2⁹ = 149557073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10525 + ... + 20245.

It is an arithmetic number, because the mean of its divisors is an integer number (11943477).

Almost surely, 2^149557585 is an apocalyptic number.

It is an amenable number.

149557585 is a deficient number, since it is larger than the sum of its proper divisors (41538047).

149557585 is a wasteful number, since it uses less digits than its factorization.

149557585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9924.

The product of its digits is 1260000, while the sum is 49.

The square root of 149557585 is about 12229.3738596872. The cubic root of 149557585 is about 530.8063967453.

The spelling of 149557585 in words is "one hundred forty-nine million, five hundred fifty-seven thousand, five hundred eighty-five".