151015550 has 72 divisors (see below), whose sum is σ = 333199656. Its totient is φ = 50756160.

The previous prime is 151015549. The next prime is 151015583. The reversal of 151015550 is 55510151.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 129269 + ... + 130431.

It is an arithmetic number, because the mean of its divisors is an integer number (4627773).

Almost surely, 2^151015550 is an apocalyptic number.

151015550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

151015550 is an abundant number, since it is smaller than the sum of its proper divisors (182184106).

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

151015550 is a wasteful number, since it uses less digits than its factorization.

151015550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242 (or 1230 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 23.

The square root of 151015550 is about 12288.8384316826. The cubic root of 151015550 is about 532.5256807617.

The spelling of 151015550 in words is "one hundred fifty-one million, fifteen thousand, five hundred fifty".