251330152 has 16 divisors (see below), whose sum is σ = 471889440. Its totient is φ = 125492976.

The previous prime is 251330137. The next prime is 251330161. The reversal of 251330152 is 251033152.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15198 + ... + 27085.

It is an arithmetic number, because the mean of its divisors is an integer number (29493090).

Almost surely, 2^251330152 is an apocalyptic number.

It is an amenable number.

251330152 is a deficient number, since it is larger than the sum of its proper divisors (220559288).

251330152 is a wasteful number, since it uses less digits than its factorization.

251330152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43032 (or 43028 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 251330152 is about 15853.3955984199. The cubic root of 251330152 is about 631.0758069567.

The spelling of 251330152 in words is "two hundred fifty-one million, three hundred thirty thousand, one hundred fifty-two".