74145937 has 2 divisors, whose sum is σ = 74145938. Its totient is φ = 74145936.

The previous prime is 74145901. The next prime is 74145941. The reversal of 74145937 is 73954147.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47941776 + 26204161 = 6924^2 + 5119^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74145937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74145937.

It is not a weakly prime, because it can be changed into another prime (74145947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37072968 + 37072969.

It is an arithmetic number, because the mean of its divisors is an integer number (37072969).

Almost surely, 2^74145937 is an apocalyptic number.

It is an amenable number.

74145937 is a deficient number, since it is larger than the sum of its proper divisors (1).

74145937 is an equidigital number, since it uses as much as digits as its factorization.

74145937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 40.

The square root of 74145937 is about 8610.8035049001. The cubic root of 74145937 is about 420.1094518221.

The spelling of 74145937 in words is "seventy-four million, one hundred forty-five thousand, nine hundred thirty-seven".