23156347 has 2 divisors, whose sum is σ = 23156348. Its totient is φ = 23156346.

The previous prime is 23156321. The next prime is 23156417. The reversal of 23156347 is 74365132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23156347 - 2⁷ = 23156219 is a prime.

It is not a weakly prime, because it can be changed into another prime (23156047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11578173 + 11578174.

It is an arithmetic number, because the mean of its divisors is an integer number (11578174).

Almost surely, 2^23156347 is an apocalyptic number.

23156347 is a deficient number, since it is larger than the sum of its proper divisors (1).

23156347 is an equidigital number, since it uses as much as digits as its factorization.

23156347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 31.

The square root of 23156347 is about 4812.1042174916. The cubic root of 23156347 is about 285.0296347557.

The spelling of 23156347 in words is "twenty-three million, one hundred fifty-six thousand, three hundred forty-seven".