5120129 has 4 divisors (see below), whose sum is σ = 5851584. Its totient is φ = 4388676.

The previous prime is 5120123. The next prime is 5120131. The reversal of 5120129 is 9210215.

5120129 = T₁₂₀₆ + T₁₂₀₇ + ... + T₁₂₁₂.

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 5120129 - 2⁴ = 5120113 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 5120129.

It is not an unprimeable number, because it can be changed into a prime (5120123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365717 + ... + 365730.

It is an arithmetic number, because the mean of its divisors is an integer number (1462896).

Almost surely, 2^5120129 is an apocalyptic number.

It is an amenable number.

5120129 is a deficient number, since it is larger than the sum of its proper divisors (731455).

5120129 is an equidigital number, since it uses as much as digits as its factorization.

5120129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731454.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 5120129 is about 2262.7702048595. The cubic root of 5120129 is about 172.3562227012.

The spelling of 5120129 in words is "five million, one hundred twenty thousand, one hundred twenty-nine".