23136037 has 4 divisors (see below), whose sum is σ = 23572620. Its totient is φ = 22699456.

The previous prime is 23135993. The next prime is 23136049. The reversal of 23136037 is 73063132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15374241 + 7761796 = 3921^2 + 2786^2 .

It is a cyclic number.

It is not a de Polignac number, because 23136037 - 2¹⁹ = 22611749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23136097) 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, 218212 + ... + 218317.

It is an arithmetic number, because the mean of its divisors is an integer number (5893155).

Almost surely, 2^23136037 is an apocalyptic number.

It is an amenable number.

23136037 is a deficient number, since it is larger than the sum of its proper divisors (436583).

23136037 is an equidigital number, since it uses as much as digits as its factorization.

23136037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436582.

The product of its (nonzero) digits is 2268, while the sum is 25.

The square root of 23136037 is about 4809.9934511390. The cubic root of 23136037 is about 284.9462789891.

Adding to 23136037 its reverse (73063132), we get a palindrome (96199169).

The spelling of 23136037 in words is "twenty-three million, one hundred thirty-six thousand, thirty-seven".