74365131 has 4 divisors (see below), whose sum is σ = 99153512. Its totient is φ = 49576752.

The previous prime is 74365121. The next prime is 74365133. The reversal of 74365131 is 13156347.

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

It is not a de Polignac number, because 74365131 - 2⁵ = 74365099 is a prime.

It is a super-2 number, since 2×74365131² = 11060345417294322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74365133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12394186 + ... + 12394191.

It is an arithmetic number, because the mean of its divisors is an integer number (24788378).

Almost surely, 2^74365131 is an apocalyptic number.

74365131 is a deficient number, since it is larger than the sum of its proper divisors (24788381).

74365131 is a wasteful number, since it uses less digits than its factorization.

74365131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24788380.

The product of its digits is 7560, while the sum is 30.

The square root of 74365131 is about 8623.5219603130. The cubic root of 74365131 is about 420.5230275398.

The spelling of 74365131 in words is "seventy-four million, three hundred sixty-five thousand, one hundred thirty-one".