150355531 has 32 divisors (see below), whose sum is σ = 179919360. Its totient is φ = 124540416.

The previous prime is 150355507. The next prime is 150355547. The reversal of 150355531 is 135553051.

It is a cyclic number.

It is not a de Polignac number, because 150355531 - 2¹⁵ = 150322763 is a prime.

It is a super-2 number, since 2×150355531² = 45213571404583922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 150355531.

It is not an unprimeable number, because it can be changed into a prime (150355501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 274600 + ... + 275146.

It is an arithmetic number, because the mean of its divisors is an integer number (5622480).

Almost surely, 2^150355531 is an apocalyptic number.

150355531 is a deficient number, since it is larger than the sum of its proper divisors (29563829).

150355531 is a wasteful number, since it uses less digits than its factorization.

150355531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643.

The product of its (nonzero) digits is 5625, while the sum is 28.

The square root of 150355531 is about 12261.9546158025. The cubic root of 150355531 is about 531.7487401044.

The spelling of 150355531 in words is "one hundred fifty million, three hundred fifty-five thousand, five hundred thirty-one".