3111925 has 6 divisors (see below), whose sum is σ = 3858818. Its totient is φ = 2489520.

The previous prime is 3111863. The next prime is 3111931. The reversal of 3111925 is 5291113.

It can be written as a sum of positive squares in 3 ways, for example, as 580644 + 2531281 = 762^2 + 1591^2 .

It is not a de Polignac number, because 3111925 - 2¹⁵ = 3079157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3111896 and 3111905.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62214 + ... + 62263.

Almost surely, 2^3111925 is an apocalyptic number.

It is an amenable number.

3111925 is a deficient number, since it is larger than the sum of its proper divisors (746893).

3111925 is a wasteful number, since it uses less digits than its factorization.

3111925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124487 (or 124482 counting only the distinct ones).

The product of its digits is 270, while the sum is 22.

The square root of 3111925 is about 1764.0649081029. The cubic root of 3111925 is about 145.9967003695.

The spelling of 3111925 in words is "three million, one hundred eleven thousand, nine hundred twenty-five".