672151231 has 2 divisors, whose sum is σ = 672151232. Its totient is φ = 672151230.

The previous prime is 672151211. The next prime is 672151237. The reversal of 672151231 is 132151276.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 672151231 - 2²⁵ = 638596799 is a prime.

It is a super-2 number, since 2×672151231² = 903574554669630722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 672151231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (672151237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336075615 + 336075616.

It is an arithmetic number, because the mean of its divisors is an integer number (336075616).

Almost surely, 2^672151231 is an apocalyptic number.

672151231 is a deficient number, since it is larger than the sum of its proper divisors (1).

672151231 is an equidigital number, since it uses as much as digits as its factorization.

672151231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 28.

The square root of 672151231 is about 25925.8795607786. The cubic root of 672151231 is about 875.9695293051.

The spelling of 672151231 in words is "six hundred seventy-two million, one hundred fifty-one thousand, two hundred thirty-one".