74471513 has 2 divisors, whose sum is σ = 74471514. Its totient is φ = 74471512.

The previous prime is 74471503. The next prime is 74471563. The reversal of 74471513 is 31517447.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56595529 + 17875984 = 7523^2 + 4228^2 .

It is a cyclic number.

It is not a de Polignac number, because 74471513 - 2⁴ = 74471497 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 74471513.

It is not a weakly prime, because it can be changed into another prime (74471503) 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, 37235756 + 37235757.

It is an arithmetic number, because the mean of its divisors is an integer number (37235757).

Almost surely, 2^74471513 is an apocalyptic number.

It is an amenable number.

74471513 is a deficient number, since it is larger than the sum of its proper divisors (1).

74471513 is an equidigital number, since it uses as much as digits as its factorization.

74471513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11760, while the sum is 32.

The square root of 74471513 is about 8629.6878854336. The cubic root of 74471513 is about 420.7234564454.

The spelling of 74471513 in words is "seventy-four million, four hundred seventy-one thousand, five hundred thirteen".