23087137 has 2 divisors, whose sum is σ = 23087138. Its totient is φ = 23087136.

The previous prime is 23087123. The next prime is 23087159. The reversal of 23087137 is 73178032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20394256 + 2692881 = 4516^2 + 1641^2 .

It is a cyclic number.

It is not a de Polignac number, because 23087137 - 2¹¹ = 23085089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23087099 and 23087108.

It is not a weakly prime, because it can be changed into another prime (23087107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11543568 + 11543569.

It is an arithmetic number, because the mean of its divisors is an integer number (11543569).

Almost surely, 2^23087137 is an apocalyptic number.

It is an amenable number.

23087137 is a deficient number, since it is larger than the sum of its proper divisors (1).

23087137 is an equidigital number, since it uses as much as digits as its factorization.

23087137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 23087137 is about 4804.9075953654. The cubic root of 23087137 is about 284.7453845807.

The spelling of 23087137 in words is "twenty-three million, eighty-seven thousand, one hundred thirty-seven".