23215132 has 24 divisors (see below), whose sum is σ = 44183664. Its totient is φ = 10628352.

The previous prime is 23215117. The next prime is 23215139. The reversal of 23215132 is 23151232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23215139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2098 + ... + 7129.

It is an arithmetic number, because the mean of its divisors is an integer number (1840986).

Almost surely, 2^23215132 is an apocalyptic number.

It is an amenable number.

23215132 is a deficient number, since it is larger than the sum of its proper divisors (20968532).

23215132 is a wasteful number, since it uses less digits than its factorization.

23215132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9285 (or 9283 counting only the distinct ones).

The product of its digits is 360, while the sum is 19.

The square root of 23215132 is about 4818.2083807158. The cubic root of 23215132 is about 285.2706242419.

Adding to 23215132 its reverse (23151232), we get a palindrome (46366364).

The spelling of 23215132 in words is "twenty-three million, two hundred fifteen thousand, one hundred thirty-two".