3115145 has 24 divisors (see below), whose sum is σ = 4341120. Its totient is φ = 2138400.

The previous prime is 3115117. The next prime is 3115153. The reversal of 3115145 is 5415113.

It is not a de Polignac number, because 3115145 - 2⁸ = 3114889 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11360 + ... + 11630.

It is an arithmetic number, because the mean of its divisors is an integer number (180880).

Almost surely, 2^3115145 is an apocalyptic number.

It is an amenable number.

3115145 is a deficient number, since it is larger than the sum of its proper divisors (1225975).

3115145 is a wasteful number, since it uses less digits than its factorization.

3115145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317 (or 306 counting only the distinct ones).

The product of its digits is 300, while the sum is 20.

The square root of 3115145 is about 1764.9773369650. The cubic root of 3115145 is about 146.0470386996.

Subtracting 3115145 from its reverse (5415113), we obtain a cube (2299968 = 132³).

The spelling of 3115145 in words is "three million, one hundred fifteen thousand, one hundred forty-five".