149353985 has 16 divisors (see below), whose sum is σ = 198201600. Its totient is φ = 107130240.

The previous prime is 149353979. The next prime is 149353987. The reversal of 149353985 is 589353941.

It is a de Polignac number, because none of the positive numbers 2^k-149353985 is a prime.

It is a super-2 number, since 2×149353985² = 44613225670760450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (149353987) 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 15 ways as a sum of consecutive naturals, for example, 14585 + ... + 22614.

It is an arithmetic number, because the mean of its divisors is an integer number (12387600).

Almost surely, 2^149353985 is an apocalyptic number.

It is an amenable number.

149353985 is a deficient number, since it is larger than the sum of its proper divisors (48847615).

149353985 is a wasteful number, since it uses less digits than its factorization.

149353985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37288.

The product of its digits is 583200, while the sum is 47.

The square root of 149353985 is about 12221.0468045908. The cubic root of 149353985 is about 530.5654165217.

The spelling of 149353985 in words is "one hundred forty-nine million, three hundred fifty-three thousand, nine hundred eighty-five".