74194137 has 20 divisors (see below), whose sum is σ = 117354996. Its totient is φ = 46552320.

The previous prime is 74194111. The next prime is 74194147. The reversal of 74194137 is 73149147.

It can be written as a sum of positive squares in 2 ways, for example, as 49154121 + 25040016 = 7011^2 + 5004^2 .

It is not a de Polignac number, because 74194137 - 2¹⁰ = 74193113 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (74194147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25564 + ... + 28317.

Almost surely, 2^74194137 is an apocalyptic number.

It is an amenable number.

74194137 is a deficient number, since it is larger than the sum of its proper divisors (43160859).

74194137 is a wasteful number, since it uses less digits than its factorization.

74194137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53910 (or 53901 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 74194137 is about 8613.6018598493. The cubic root of 74194137 is about 420.2004655273.

The spelling of 74194137 in words is "seventy-four million, one hundred ninety-four thousand, one hundred thirty-seven".