23156746 has 8 divisors (see below), whose sum is σ = 35674020. Its totient is φ = 11265408.

The previous prime is 23156743. The next prime is 23156767. The reversal of 23156746 is 64765132.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 23145721 + 11025 = 4811^2 + 105^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (23156743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156391 + ... + 156538.

Almost surely, 2^23156746 is an apocalyptic number.

23156746 is a deficient number, since it is larger than the sum of its proper divisors (12517274).

23156746 is a wasteful number, since it uses less digits than its factorization.

23156746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312968.

The product of its digits is 30240, while the sum is 34.

The square root of 23156746 is about 4812.1456752679. The cubic root of 23156746 is about 285.0312718327.

The spelling of 23156746 in words is "twenty-three million, one hundred fifty-six thousand, seven hundred forty-six".