3125917 has 4 divisors (see below), whose sum is σ = 3170016. Its totient is φ = 3081820.

The previous prime is 3125893. The next prime is 3125921. The reversal of 3125917 is 7195213.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7195213 = 41 ⋅175493.

It is a cyclic number.

It is not a de Polignac number, because 3125917 - 2⁷ = 3125789 is a prime.

It is a super-3 number, since 3×3125917³ = 91633353730441410639, which contains 333 as substring.

It is a Duffinian number.

3125917 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3125957) 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, 21943 + ... + 22084.

It is an arithmetic number, because the mean of its divisors is an integer number (792504).

Almost surely, 2^3125917 is an apocalyptic number.

It is an amenable number.

3125917 is a deficient number, since it is larger than the sum of its proper divisors (44099).

3125917 is an equidigital number, since it uses as much as digits as its factorization.

3125917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44098.

The product of its digits is 1890, while the sum is 28.

The square root of 3125917 is about 1768.0263007094. The cubic root of 3125917 is about 146.2151859082.

The spelling of 3125917 in words is "three million, one hundred twenty-five thousand, nine hundred seventeen".