74133139 has 4 divisors (see below), whose sum is σ = 74397240. Its totient is φ = 73869040.

The previous prime is 74133127. The next prime is 74133151. The reversal of 74133139 is 93133147.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93133147 = 163 ⋅571369.

It is an interprime number because it is at equal distance from previous prime (74133127) and next prime (74133151).

It is a cyclic number.

It is not a de Polignac number, because 74133139 - 2¹⁷ = 74002067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74133139.

It is not an unprimeable number, because it can be changed into a prime (74133119) 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, 131629 + ... + 132190.

It is an arithmetic number, because the mean of its divisors is an integer number (18599310).

Almost surely, 2^74133139 is an apocalyptic number.

74133139 is a deficient number, since it is larger than the sum of its proper divisors (264101).

74133139 is a wasteful number, since it uses less digits than its factorization.

74133139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264100.

The product of its digits is 6804, while the sum is 31.

The square root of 74133139 is about 8610.0603366062. The cubic root of 74133139 is about 420.0852793574.

The spelling of 74133139 in words is "seventy-four million, one hundred thirty-three thousand, one hundred thirty-nine".