672151237 has 2 divisors, whose sum is σ = 672151238. Its totient is φ = 672151236.

The previous prime is 672151231. The next prime is 672151301. The reversal of 672151237 is 732151276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 669308641 + 2842596 = 25871^2 + 1686^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-672151237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (672151231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336075618 + 336075619.

It is an arithmetic number, because the mean of its divisors is an integer number (336075619).

Almost surely, 2^672151237 is an apocalyptic number.

It is an amenable number.

672151237 is a deficient number, since it is larger than the sum of its proper divisors (1).

672151237 is an equidigital number, since it uses as much as digits as its factorization.

672151237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17640, while the sum is 34.

The square root of 672151237 is about 25925.8796764931. The cubic root of 672151237 is about 875.9695319115.

The spelling of 672151237 in words is "six hundred seventy-two million, one hundred fifty-one thousand, two hundred thirty-seven".