150121855 has 24 divisors (see below), whose sum is σ = 197112960. Its totient is φ = 109699200.

The previous prime is 150121847. The next prime is 150121879. The reversal of 150121855 is 558121051.

It is not a de Polignac number, because 150121855 - 2³ = 150121847 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84466 + ... + 86224.

It is an arithmetic number, because the mean of its divisors is an integer number (8213040).

Almost surely, 2^150121855 is an apocalyptic number.

150121855 is a deficient number, since it is larger than the sum of its proper divisors (46991105).

150121855 is a wasteful number, since it uses less digits than its factorization.

150121855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1891 (or 1878 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 28.

The square root of 150121855 is about 12252.4224135475. The cubic root of 150121855 is about 531.4731237149.

The spelling of 150121855 in words is "one hundred fifty million, one hundred twenty-one thousand, eight hundred fifty-five".