149231601 has 12 divisors (see below), whose sum is σ = 215662720. Its totient is φ = 99438840.

The previous prime is 149231587. The next prime is 149231603. The reversal of 149231601 is 106132941.

It is not a de Polignac number, because 149231601 - 2⁵ = 149231569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149231603) 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, 33156 + ... + 37386.

Almost surely, 2^149231601 is an apocalyptic number.

It is an amenable number.

149231601 is a deficient number, since it is larger than the sum of its proper divisors (66431119).

149231601 is a wasteful number, since it uses less digits than its factorization.

149231601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8156 (or 8153 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 149231601 is about 12216.0386787207. The cubic root of 149231601 is about 530.4204578590.

The spelling of 149231601 in words is "one hundred forty-nine million, two hundred thirty-one thousand, six hundred one".