23149663 has 2 divisors, whose sum is σ = 23149664. Its totient is φ = 23149662.

The previous prime is 23149589. The next prime is 23149673. The reversal of 23149663 is 36694132.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23149663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23149673) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11574831 + 11574832.

It is an arithmetic number, because the mean of its divisors is an integer number (11574832).

Almost surely, 2^23149663 is an apocalyptic number.

23149663 is a deficient number, since it is larger than the sum of its proper divisors (1).

23149663 is an equidigital number, since it uses as much as digits as its factorization.

23149663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 34.

The square root of 23149663 is about 4811.4096686938. The cubic root of 23149663 is about 285.0022078417.

It can be divided in two parts, 231 and 49663, that added together give a palindrome (49894).

The spelling of 23149663 in words is "twenty-three million, one hundred forty-nine thousand, six hundred sixty-three".