149474931 has 32 divisors (see below), whose sum is σ = 218956608. Its totient is φ = 90316800.

The previous prime is 149474929. The next prime is 149474933. The reversal of 149474931 is 139474941.

It is an interprime number because it is at equal distance from previous prime (149474929) and next prime (149474933).

It is not a de Polignac number, because 149474931 - 2¹ = 149474929 is a prime.

It is a super-2 number, since 2×149474931² = 44685509994909522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (149474933) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 212881 + ... + 213581.

It is an arithmetic number, because the mean of its divisors is an integer number (6842394).

Almost surely, 2^149474931 is an apocalyptic number.

149474931 is a deficient number, since it is larger than the sum of its proper divisors (69481677).

149474931 is a wasteful number, since it uses less digits than its factorization.

149474931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871.

The product of its digits is 108864, while the sum is 42.

The square root of 149474931 is about 12225.9940700133. The cubic root of 149474931 is about 530.7085941571.

The spelling of 149474931 in words is "one hundred forty-nine million, four hundred seventy-four thousand, nine hundred thirty-one".