150421331 has 4 divisors (see below), whose sum is σ = 155273664. Its totient is φ = 145569000.

The previous prime is 150421319. The next prime is 150421373. The reversal of 150421331 is 133124051.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150421331 is a prime.

It is a super-2 number, since 2×150421331² = 45253153639623122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150427331) 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, 2426120 + ... + 2426181.

It is an arithmetic number, because the mean of its divisors is an integer number (38818416).

Almost surely, 2^150421331 is an apocalyptic number.

150421331 is a deficient number, since it is larger than the sum of its proper divisors (4852333).

150421331 is an equidigital number, since it uses as much as digits as its factorization.

150421331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4852332.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 150421331 is about 12264.6374182036. The cubic root of 150421331 is about 531.8262984180.

Adding to 150421331 its reverse (133124051), we get a palindrome (283545382).

The spelling of 150421331 in words is "one hundred fifty million, four hundred twenty-one thousand, three hundred thirty-one".