23651401 has 2 divisors, whose sum is σ = 23651402. Its totient is φ = 23651400.

The previous prime is 23651393. The next prime is 23651417. The reversal of 23651401 is 10415632.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17015625 + 6635776 = 4125^2 + 2576^2 .

It is a cyclic number.

It is not a de Polignac number, because 23651401 - 2³ = 23651393 is a prime.

It is not a weakly prime, because it can be changed into another prime (23651101) 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, 11825700 + 11825701.

It is an arithmetic number, because the mean of its divisors is an integer number (11825701).

Almost surely, 2^23651401 is an apocalyptic number.

It is an amenable number.

23651401 is a deficient number, since it is larger than the sum of its proper divisors (1).

23651401 is an equidigital number, since it uses as much as digits as its factorization.

23651401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 23651401 is about 4863.2706073177. The cubic root of 23651401 is about 287.0465229086.

The spelling of 23651401 in words is "twenty-three million, six hundred fifty-one thousand, four hundred one".