74855131 has 16 divisors (see below), whose sum is σ = 87351264. Its totient is φ = 63512064.

The previous prime is 74855101. The next prime is 74855159. The reversal of 74855131 is 13155847.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 74855131 - 2¹⁷ = 74724059 is a prime.

It is a super-2 number, since 2×74855131² = 11206581274054322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74855101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5565 + ... + 13441.

It is an arithmetic number, because the mean of its divisors is an integer number (5459454).

Almost surely, 2^74855131 is an apocalyptic number.

74855131 is a deficient number, since it is larger than the sum of its proper divisors (12496133).

74855131 is a wasteful number, since it uses less digits than its factorization.

74855131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7950.

The product of its digits is 16800, while the sum is 34.

The square root of 74855131 is about 8651.8859793689. The cubic root of 74855131 is about 421.4446304218. Note that the first 3 decimals are identical.

The spelling of 74855131 in words is "seventy-four million, eight hundred fifty-five thousand, one hundred thirty-one".