3125129 has 4 divisors (see below), whose sum is σ = 3571584. Its totient is φ = 2678676.

The previous prime is 3125117. The next prime is 3125147. The reversal of 3125129 is 9215213.

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 not a de Polignac number, because 3125129 - 2⁴ = 3125113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3125159) 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, 223217 + ... + 223230.

It is an arithmetic number, because the mean of its divisors is an integer number (892896).

Almost surely, 2^3125129 is an apocalyptic number.

It is an amenable number.

3125129 is a deficient number, since it is larger than the sum of its proper divisors (446455).

3125129 is an equidigital number, since it uses as much as digits as its factorization.

3125129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446454.

The product of its digits is 540, while the sum is 23.

The square root of 3125129 is about 1767.8034392997. The cubic root of 3125129 is about 146.2028986072.

The spelling of 3125129 in words is "three million, one hundred twenty-five thousand, one hundred twenty-nine".