76566137 has 2 divisors, whose sum is σ = 76566138. Its totient is φ = 76566136.

The previous prime is 76566131. The next prime is 76566151. The reversal of 76566137 is 73166567.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60155536 + 16410601 = 7756^2 + 4051^2 .

It is a cyclic number.

It is not a de Polignac number, because 76566137 - 2⁴ = 76566121 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 76566094 and 76566103.

It is not a weakly prime, because it can be changed into another prime (76566131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38283068 + 38283069.

It is an arithmetic number, because the mean of its divisors is an integer number (38283069).

Almost surely, 2^76566137 is an apocalyptic number.

It is an amenable number.

76566137 is a deficient number, since it is larger than the sum of its proper divisors (1).

76566137 is an equidigital number, since it uses as much as digits as its factorization.

76566137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 41.

The square root of 76566137 is about 8750.2078261033. The cubic root of 76566137 is about 424.6315367001.

The spelling of 76566137 in words is "seventy-six million, five hundred sixty-six thousand, one hundred thirty-seven".