749500129 has 9 divisors (see below), whose sum is σ = 872090481. Its totient is φ = 642264420.

The previous prime is 749500111. The next prime is 749500223. The reversal of 749500129 is 921005947.

The square root of 749500129 is 27377.

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

It is not a de Polignac number, because 749500129 - 2⁷ = 749500001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (749500109) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 189684 + ... + 193594.

Almost surely, 2^749500129 is an apocalyptic number.

749500129 is the 27377-th square number.

749500129 is the 13689-th centered octagonal number.

It is an amenable number.

749500129 is a deficient number, since it is larger than the sum of its proper divisors (122590352).

749500129 is an frugal number, since it uses more digits than its factorization.

749500129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7836 (or 3918 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The cubic root of 749500129 is about 908.3584013581.

The spelling of 749500129 in words is "seven hundred forty-nine million, five hundred thousand, one hundred twenty-nine".