23612157 has 6 divisors (see below), whose sum is σ = 34106462. Its totient is φ = 15741432.

The previous prime is 23612153. The next prime is 23612227. The reversal of 23612157 is 75121632.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13461561 + 10150596 = 3669^2 + 3186^2 .

It is not a de Polignac number, because 23612157 - 2² = 23612153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23612157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23612153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1311778 + ... + 1311795.

Almost surely, 2^23612157 is an apocalyptic number.

It is an amenable number.

23612157 is a deficient number, since it is larger than the sum of its proper divisors (10494305).

23612157 is a wasteful number, since it uses less digits than its factorization.

23612157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2623579 (or 2623576 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 23612157 is about 4859.2341989248. The cubic root of 23612157 is about 286.8876726997.

Adding to 23612157 its reverse (75121632), we get a palindrome (98733789).

The spelling of 23612157 in words is "twenty-three million, six hundred twelve thousand, one hundred fifty-seven".