251120150 has 48 divisors (see below), whose sum is σ = 507586560. Its totient is φ = 92080800.

The previous prime is 251120143. The next prime is 251120159. The reversal of 251120150 is 51021152.

It is a super-2 number, since 2×251120150² = 126122659472045000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251120159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25187 + ... + 33713.

It is an arithmetic number, because the mean of its divisors is an integer number (10574720).

Almost surely, 2^251120150 is an apocalyptic number.

251120150 is an abundant number, since it is smaller than the sum of its proper divisors (256466410).

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

251120150 is a wasteful number, since it uses less digits than its factorization.

251120150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8589 (or 8584 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 251120150 is about 15846.7709644583. The cubic root of 251120150 is about 630.8999902613.

The spelling of 251120150 in words is "two hundred fifty-one million, one hundred twenty thousand, one hundred fifty".