79523137 has 2 divisors, whose sum is σ = 79523138. Its totient is φ = 79523136.

The previous prime is 79523089. The next prime is 79523159. The reversal of 79523137 is 73132597.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57017601 + 22505536 = 7551^2 + 4744^2 .

It is an emirp because it is prime and its reverse (73132597) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79523137 - 2⁷ = 79523009 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 79523096 and 79523105.

It is not a weakly prime, because it can be changed into another prime (79523537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39761568 + 39761569.

It is an arithmetic number, because the mean of its divisors is an integer number (39761569).

Almost surely, 2^79523137 is an apocalyptic number.

It is an amenable number.

79523137 is a deficient number, since it is larger than the sum of its proper divisors (1).

79523137 is an equidigital number, since it uses as much as digits as its factorization.

79523137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39690, while the sum is 37.

The square root of 79523137 is about 8917.5746142099. The cubic root of 79523137 is about 430.0290894328.

It can be divided in two parts, 795 and 23137, that added together give a palindrome (23932).

The spelling of 79523137 in words is "seventy-nine million, five hundred twenty-three thousand, one hundred thirty-seven".