236672641 has 2 divisors, whose sum is σ = 236672642. Its totient is φ = 236672640.

The previous prime is 236672629. The next prime is 236672647. The reversal of 236672641 is 146276632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219158416 + 17514225 = 14804^2 + 4185^2 .

It is a cyclic number.

It is not a de Polignac number, because 236672641 - 2²¹ = 234575489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 236672641.

It is not a weakly prime, because it can be changed into another prime (236672647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118336320 + 118336321.

It is an arithmetic number, because the mean of its divisors is an integer number (118336321).

Almost surely, 2^236672641 is an apocalyptic number.

It is an amenable number.

236672641 is a deficient number, since it is larger than the sum of its proper divisors (1).

236672641 is an equidigital number, since it uses as much as digits as its factorization.

236672641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 37.

The square root of 236672641 is about 15384.1685183178. The cubic root of 236672641 is about 618.5612153922.

The spelling of 236672641 in words is "two hundred thirty-six million, six hundred seventy-two thousand, six hundred forty-one".