74039137 has 2 divisors, whose sum is σ = 74039138. Its totient is φ = 74039136.

The previous prime is 74039123. The next prime is 74039149. The reversal of 74039137 is 73193047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54405376 + 19633761 = 7376^2 + 4431^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74039137 is a prime.

It is not a weakly prime, because it can be changed into another prime (74039107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37019568 + 37019569.

It is an arithmetic number, because the mean of its divisors is an integer number (37019569).

Almost surely, 2^74039137 is an apocalyptic number.

It is an amenable number.

74039137 is a deficient number, since it is larger than the sum of its proper divisors (1).

74039137 is an equidigital number, since it uses as much as digits as its factorization.

74039137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 74039137 is about 8604.5997582688. The cubic root of 74039137 is about 419.9076459825.

The spelling of 74039137 in words is "seventy-four million, thirty-nine thousand, one hundred thirty-seven".