23162564 has 24 divisors (see below), whose sum is σ = 42524160. Its totient is φ = 11018304.

The previous prime is 23162521. The next prime is 23162567. The reversal of 23162564 is 46526132.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (23162567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19952 + ... + 21080.

It is an arithmetic number, because the mean of its divisors is an integer number (1771840).

Almost surely, 2^23162564 is an apocalyptic number.

It is an amenable number.

23162564 is a deficient number, since it is larger than the sum of its proper divisors (19361596).

23162564 is a wasteful number, since it uses less digits than its factorization.

23162564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379 (or 1377 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 23162564 is about 4812.7501493429. The cubic root of 23162564 is about 285.0551406595.

Adding to 23162564 its reverse (46526132), we get a palindrome (69688696).

The spelling of 23162564 in words is "twenty-three million, one hundred sixty-two thousand, five hundred sixty-four".