23147136 has 96 divisors (see below), whose sum is σ = 67785120. Its totient is φ = 7580160.

The previous prime is 23147129. The next prime is 23147143. The reversal of 23147136 is 63174132.

It is an interprime number because it is at equal distance from previous prime (23147129) and next prime (23147143).

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81651 + ... + 81933.

It is an arithmetic number, because the mean of its divisors is an integer number (706095).

Almost surely, 2^23147136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23147136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33892560).

23147136 is an abundant number, since it is smaller than the sum of its proper divisors (44637984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23147136 is a wasteful number, since it uses less digits than its factorization.

23147136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 359 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 23147136 is about 4811.1470565760. The cubic root of 23147136 is about 284.9918372547.

The spelling of 23147136 in words is "twenty-three million, one hundred forty-seven thousand, one hundred thirty-six".