5129729 has 4 divisors (see below), whose sum is σ = 5596080. Its totient is φ = 4663380.

The previous prime is 5129681. The next prime is 5129731. The reversal of 5129729 is 9279215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5129729 - 2¹⁶ = 5064193 is a prime.

It is a super-2 number, since 2×5129729² = 52628239226882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5129749) 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, 233159 + ... + 233180.

It is an arithmetic number, because the mean of its divisors is an integer number (1399020).

Almost surely, 2^5129729 is an apocalyptic number.

It is an amenable number.

5129729 is a deficient number, since it is larger than the sum of its proper divisors (466351).

5129729 is a wasteful number, since it uses less digits than its factorization.

5129729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466350.

The product of its digits is 11340, while the sum is 35.

The square root of 5129729 is about 2264.8905050797. The cubic root of 5129729 is about 172.4638753731.

The spelling of 5129729 in words is "five million, one hundred twenty-nine thousand, seven hundred twenty-nine".