74942131 has 8 divisors (see below), whose sum is σ = 83965104. Its totient is φ = 66287520.

The previous prime is 74942123. The next prime is 74942143. The reversal of 74942131 is 13124947.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74942131 - 2³ = 74942123 is a prime.

It is a super-2 number, since 2×74942131² = 11232645997642322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74942093 and 74942102.

It is not an unprimeable number, because it can be changed into a prime (75942131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91660 + ... + 92473.

It is an arithmetic number, because the mean of its divisors is an integer number (10495638).

Almost surely, 2^74942131 is an apocalyptic number.

74942131 is a deficient number, since it is larger than the sum of its proper divisors (9022973).

74942131 is a wasteful number, since it uses less digits than its factorization.

74942131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184181.

The product of its digits is 6048, while the sum is 31.

The square root of 74942131 is about 8656.9123248419. The cubic root of 74942131 is about 421.6078411761.

The spelling of 74942131 in words is "seventy-four million, nine hundred forty-two thousand, one hundred thirty-one".