74485013 has 4 divisors (see below), whose sum is σ = 74558988. Its totient is φ = 74411040.

The previous prime is 74485009. The next prime is 74485027. The reversal of 74485013 is 31058447.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39225169 + 35259844 = 6263^2 + 5938^2 .

It is a cyclic number.

It is not a de Polignac number, because 74485013 - 2² = 74485009 is a prime.

It is a super-2 number, since 2×74485013² = 11096034323220338, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74485043) 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 in 3 ways as a sum of consecutive naturals, for example, 35456 + ... + 37497.

It is an arithmetic number, because the mean of its divisors is an integer number (18639747).

Almost surely, 2^74485013 is an apocalyptic number.

It is an amenable number.

74485013 is a deficient number, since it is larger than the sum of its proper divisors (73975).

74485013 is a wasteful number, since it uses less digits than its factorization.

74485013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73974.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 74485013 is about 8630.4700335497. The cubic root of 74485013 is about 420.7488774566.

The spelling of 74485013 in words is "seventy-four million, four hundred eighty-five thousand, thirteen".