150231731 has 8 divisors (see below), whose sum is σ = 161936880. Its totient is φ = 138547872.

The previous prime is 150231709. The next prime is 150231751. The reversal of 150231731 is 137132051.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 150231731 - 2¹⁴ = 150215347 is a prime.

It is a super-2 number, since 2×150231731² = 45139145998512722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 150231697 and 150231706.

It is not an unprimeable number, because it can be changed into a prime (150231701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11276 + ... + 20678.

It is an arithmetic number, because the mean of its divisors is an integer number (20242110).

Almost surely, 2^150231731 is an apocalyptic number.

150231731 is a deficient number, since it is larger than the sum of its proper divisors (11705149).

150231731 is a wasteful number, since it uses less digits than its factorization.

150231731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10645.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 150231731 is about 12256.9054414236. The cubic root of 150231731 is about 531.6027559611.

Adding to 150231731 its reverse (137132051), we get a palindrome (287363782).

It can be divided in two parts, 1502 and 31731, that added together give a palindrome (33233).

The spelling of 150231731 in words is "one hundred fifty million, two hundred thirty-one thousand, seven hundred thirty-one".