623151331 has 12 divisors (see below), whose sum is σ = 686837536. Its totient is φ = 564941520.

The previous prime is 623151329. The next prime is 623151383. The reversal of 623151331 is 133151326.

It is not a de Polignac number, because 623151331 - 2¹ = 623151329 is a prime.

It is a super-2 number, since 2×623151331² = 776635162654143122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 623151296 and 623151305.

It is not an unprimeable number, because it can be changed into a prime (623151311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38230 + ... + 52036.

Almost surely, 2^623151331 is an apocalyptic number.

623151331 is a deficient number, since it is larger than the sum of its proper divisors (63686205).

623151331 is a wasteful number, since it uses less digits than its factorization.

623151331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14202 (or 14191 counting only the distinct ones).

The product of its digits is 1620, while the sum is 25.

The square root of 623151331 is about 24962.9992388735. Note that the first 3 decimals coincide. The cubic root of 623151331 is about 854.1441596206.

The spelling of 623151331 in words is "six hundred twenty-three million, one hundred fifty-one thousand, three hundred thirty-one".