150661323 has 16 divisors (see below), whose sum is σ = 224442400. Its totient is φ = 99882720.

The previous prime is 150661319. The next prime is 150661337. The reversal of 150661323 is 323166051.

It is not a de Polignac number, because 150661323 - 2² = 150661319 is a prime.

It is a super-2 number, since 2×150661323² = 45397668496220658, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150661363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10528 + ... + 20301.

It is an arithmetic number, because the mean of its divisors is an integer number (14027650).

Almost surely, 2^150661323 is an apocalyptic number.

150661323 is a deficient number, since it is larger than the sum of its proper divisors (73781077).

150661323 is a wasteful number, since it uses less digits than its factorization.

150661323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31019 (or 31013 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 150661323 is about 12274.4174199837. The cubic root of 150661323 is about 532.1089849175.

The spelling of 150661323 in words is "one hundred fifty million, six hundred sixty-one thousand, three hundred twenty-three".