74570137 has 2 divisors, whose sum is σ = 74570138. Its totient is φ = 74570136.

The previous prime is 74570131. The next prime is 74570149. The reversal of 74570137 is 73107547.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63936016 + 10634121 = 7996^2 + 3261^2 .

It is a cyclic number.

It is not a de Polignac number, because 74570137 - 2²³ = 66181529 is a prime.

It is not a weakly prime, because it can be changed into another prime (74570131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37285068 + 37285069.

It is an arithmetic number, because the mean of its divisors is an integer number (37285069).

Almost surely, 2^74570137 is an apocalyptic number.

It is an amenable number.

74570137 is a deficient number, since it is larger than the sum of its proper divisors (1).

74570137 is an equidigital number, since it uses as much as digits as its factorization.

74570137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20580, while the sum is 34.

The square root of 74570137 is about 8635.4002223406. The cubic root of 74570137 is about 420.9090984676.

The spelling of 74570137 in words is "seventy-four million, five hundred seventy thousand, one hundred thirty-seven".