920570137 has 2 divisors, whose sum is σ = 920570138. Its totient is φ = 920570136.

The previous prime is 920570129. The next prime is 920570201. The reversal of 920570137 is 731075029.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 908660736 + 11909401 = 30144^2 + 3451^2 .

It is a cyclic number.

It is not a de Polignac number, because 920570137 - 2³ = 920570129 is a prime.

It is not a weakly prime, because it can be changed into another prime (920570107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460285068 + 460285069.

It is an arithmetic number, because the mean of its divisors is an integer number (460285069).

Almost surely, 2^920570137 is an apocalyptic number.

It is an amenable number.

920570137 is a deficient number, since it is larger than the sum of its proper divisors (1).

920570137 is an equidigital number, since it uses as much as digits as its factorization.

920570137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 920570137 is about 30340.8987506962. The cubic root of 920570137 is about 972.7896937440.

The spelling of 920570137 in words is "nine hundred twenty million, five hundred seventy thousand, one hundred thirty-seven".