23156043 has 16 divisors (see below), whose sum is σ = 31883520. Its totient is φ = 14937696.

The previous prime is 23156017. The next prime is 23156047. The reversal of 23156043 is 34065132.

It is a happy number.

It is not a de Polignac number, because 23156043 - 2¹⁰ = 23155019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23156047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24738 + ... + 25656.

It is an arithmetic number, because the mean of its divisors is an integer number (1992720).

Almost surely, 2^23156043 is an apocalyptic number.

23156043 is a deficient number, since it is larger than the sum of its proper divisors (8727477).

23156043 is a wasteful number, since it uses less digits than its factorization.

23156043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 23156043 is about 4812.0726303746. The cubic root of 23156043 is about 285.0283874463.

The spelling of 23156043 in words is "twenty-three million, one hundred fifty-six thousand, forty-three".