3913145 has 16 divisors (see below), whose sum is σ = 5235840. Its totient is φ = 2790144.

The previous prime is 3913139. The next prime is 3913159. The reversal of 3913145 is 5413193.

It is a cyclic number.

It is not a de Polignac number, because 3913145 - 2¹² = 3909049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 404 + ... + 2826.

It is an arithmetic number, because the mean of its divisors is an integer number (327240).

Almost surely, 2^3913145 is an apocalyptic number.

It is an amenable number.

3913145 is a deficient number, since it is larger than the sum of its proper divisors (1322695).

3913145 is a wasteful number, since it uses less digits than its factorization.

3913145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2464.

The product of its digits is 1620, while the sum is 26.

The square root of 3913145 is about 1978.1670809110. The cubic root of 3913145 is about 157.5827397633.

The spelling of 3913145 in words is "three million, nine hundred thirteen thousand, one hundred forty-five".