150921550 has 24 divisors (see below), whose sum is σ = 302308776. Its totient is φ = 55724640.

The previous prime is 150921499. The next prime is 150921553. The reversal of 150921550 is 55129051.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150921553) 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, 115444 + ... + 116743.

It is an arithmetic number, because the mean of its divisors is an integer number (12596199).

Almost surely, 2^150921550 is an apocalyptic number.

150921550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

150921550 is an abundant number, since it is smaller than the sum of its proper divisors (151387226).

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

150921550 is a wasteful number, since it uses less digits than its factorization.

150921550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232212 (or 232207 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 28.

The square root of 150921550 is about 12285.0132275061. The cubic root of 150921550 is about 532.4151671894.

The spelling of 150921550 in words is "one hundred fifty million, nine hundred twenty-one thousand, five hundred fifty".