23151764 has 12 divisors (see below), whose sum is σ = 40709088. Its totient is φ = 11520600.

The previous prime is 23151763. The next prime is 23151781. The reversal of 23151764 is 46715132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23151763) 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, 12872 + ... + 14559.

It is an arithmetic number, because the mean of its divisors is an integer number (3392424).

Almost surely, 2^23151764 is an apocalyptic number.

It is an amenable number.

23151764 is a deficient number, since it is larger than the sum of its proper divisors (17557324).

23151764 is a wasteful number, since it uses less digits than its factorization.

23151764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27646 (or 27644 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 23151764 is about 4811.6279989209. The cubic root of 23151764 is about 285.0108295875.

Adding to 23151764 its reverse (46715132), we get a palindrome (69866896).

The spelling of 23151764 in words is "twenty-three million, one hundred fifty-one thousand, seven hundred sixty-four".