149253216 has 72 divisors (see below), whose sum is σ = 455769720. Its totient is φ = 42642432.

The previous prime is 149253211. The next prime is 149253239. The reversal of 149253216 is 612352941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149253211) 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, 11161 + ... + 20568.

It is an arithmetic number, because the mean of its divisors is an integer number (6330135).

Almost surely, 2^149253216 is an apocalyptic number.

149253216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

149253216 is an abundant number, since it is smaller than the sum of its proper divisors (306516504).

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

149253216 is a wasteful number, since it uses less digits than its factorization.

149253216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31756 (or 31741 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 149253216 is about 12216.9233442794. The cubic root of 149253216 is about 530.4460656718.

The spelling of 149253216 in words is "one hundred forty-nine million, two hundred fifty-three thousand, two hundred sixteen".