3111625 has 32 divisors (see below), whose sum is σ = 4432896. Its totient is φ = 2160000.

The previous prime is 3111607. The next prime is 3111631. The reversal of 3111625 is 5261113.

It is not a de Polignac number, because 3111625 - 2⁵ = 3111593 is a prime.

It is a Duffinian number.

3111625 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42589 + ... + 42661.

It is an arithmetic number, because the mean of its divisors is an integer number (138528).

Almost surely, 2^3111625 is an apocalyptic number.

It is an amenable number.

3111625 is a deficient number, since it is larger than the sum of its proper divisors (1321271).

3111625 is a wasteful number, since it uses less digits than its factorization.

3111625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 120 counting only the distinct ones).

The product of its digits is 180, while the sum is 19.

The square root of 3111625 is about 1763.9798751686. The cubic root of 3111625 is about 145.9920086950.

Adding to 3111625 its reverse (5261113), we get a palindrome (8372738).

It can be divided in two parts, 311 and 1625, that added together give a square (1936 = 44²).

The spelling of 3111625 in words is "three million, one hundred eleven thousand, six hundred twenty-five".