74125739 has 4 divisors (see below), whose sum is σ = 74414424. Its totient is φ = 73837056.

The previous prime is 74125699. The next prime is 74125759. The reversal of 74125739 is 93752147.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93752147 = 5557 ⋅16871.

It is a cyclic number.

It is not a de Polignac number, because 74125739 - 2¹² = 74121643 is a prime.

It is a super-2 number, since 2×74125739² = 10989250364592242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74125759) 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 3 ways as a sum of consecutive naturals, for example, 143957 + ... + 144470.

It is an arithmetic number, because the mean of its divisors is an integer number (18603606).

Almost surely, 2^74125739 is an apocalyptic number.

74125739 is a deficient number, since it is larger than the sum of its proper divisors (288685).

74125739 is a wasteful number, since it uses less digits than its factorization.

74125739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288684.

The product of its digits is 52920, while the sum is 38.

The square root of 74125739 is about 8609.6305960244. The cubic root of 74125739 is about 420.0713011980.

The spelling of 74125739 in words is "seventy-four million, one hundred twenty-five thousand, seven hundred thirty-nine".