151515520 has 64 divisors (see below), whose sum is σ = 390101040. Its totient is φ = 55941120.

The previous prime is 151515503. The next prime is 151515547. The reversal of 151515520 is 25515151.

151515520 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

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, 786 + ... + 17425.

Almost surely, 2^151515520 is an apocalyptic number.

151515520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151515520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195050520).

151515520 is an abundant number, since it is smaller than the sum of its proper divisors (238585520).

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

151515520 is a wasteful number, since it uses less digits than its factorization.

151515520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18243 (or 18231 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 25.

The square root of 151515520 is about 12309.1640658495. The cubic root of 151515520 is about 533.1127143067.

The spelling of 151515520 in words is "one hundred fifty-one million, five hundred fifteen thousand, five hundred twenty".