74425129 has 3 divisors (see below), whose sum is σ = 74433757. Its totient is φ = 74416502.

The previous prime is 74425123. The next prime is 74425139. The reversal of 74425129 is 92152447.

The square root of 74425129 is 8627.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 74425129 - 2³ = 74425121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74425094 and 74425103.

It is not an unprimeable number, because it can be changed into a prime (74425121) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4314 + ... + 12940.

Almost surely, 2^74425129 is an apocalyptic number.

74425129 is the 8627-th square number.

74425129 is the 4314-th centered octagonal number.

It is an amenable number.

74425129 is a deficient number, since it is larger than the sum of its proper divisors (8628).

74425129 is an frugal number, since it uses more digits than its factorization.

74425129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17254 (or 8627 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The cubic root of 74425129 is about 420.6360901986.

The spelling of 74425129 in words is "seventy-four million, four hundred twenty-five thousand, one hundred twenty-nine".