150535531 has 4 divisors (see below), whose sum is σ = 150565032. Its totient is φ = 150506032.

The previous prime is 150535487. The next prime is 150535543. The reversal of 150535531 is 135535051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135535051 = 6089 ⋅22259.

It is a cyclic number.

It is not a de Polignac number, because 150535531 - 2⁷ = 150535403 is a prime.

It is a super-2 number, since 2×150535531² = 45321892186903922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 150535531.

It is not an unprimeable number, because it can be changed into a prime (150535571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4906 + ... + 18031.

It is an arithmetic number, because the mean of its divisors is an integer number (37641258).

Almost surely, 2^150535531 is an apocalyptic number.

150535531 is a deficient number, since it is larger than the sum of its proper divisors (29501).

150535531 is an equidigital number, since it uses as much as digits as its factorization.

150535531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29500.

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

The square root of 150535531 is about 12269.2921963738. The cubic root of 150535531 is about 531.9608520291.

The spelling of 150535531 in words is "one hundred fifty million, five hundred thirty-five thousand, five hundred thirty-one".