3125739 has 16 divisors (see below), whose sum is σ = 4451328. Its totient is φ = 1944192.

The previous prime is 3125737. The next prime is 3125753. The reversal of 3125739 is 9375213.

It is not a de Polignac number, because 3125739 - 2¹ = 3125737 is a prime.

It is a super-2 number, since 2×3125739² = 19540488592242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3125737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8334 + ... + 8700.

It is an arithmetic number, because the mean of its divisors is an integer number (278208).

Almost surely, 2^3125739 is an apocalyptic number.

3125739 is a deficient number, since it is larger than the sum of its proper divisors (1325589).

3125739 is a wasteful number, since it uses less digits than its factorization.

3125739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554.

The product of its digits is 5670, while the sum is 30.

The square root of 3125739 is about 1767.9759613750. The cubic root of 3125739 is about 146.2124105309.

The spelling of 3125739 in words is "three million, one hundred twenty-five thousand, seven hundred thirty-nine".