149651904 has 56 divisors (see below), whose sum is σ = 416803840. Its totient is φ = 47257344.

The previous prime is 149651899. The next prime is 149651917. The reversal of 149651904 is 409156941.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 16864 + ... + 24159.

Almost surely, 2^149651904 is an apocalyptic number.

It is an amenable number.

149651904 is an abundant number, since it is smaller than the sum of its proper divisors (267151936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149651904 is a wasteful number, since it uses less digits than its factorization.

149651904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41057 (or 41047 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 149651904 is about 12233.2295000135. The cubic root of 149651904 is about 530.9179582499.

The spelling of 149651904 in words is "one hundred forty-nine million, six hundred fifty-one thousand, nine hundred four".