3140665 has 16 divisors (see below), whose sum is σ = 4354560. Its totient is φ = 2149120.

The previous prime is 3140659. The next prime is 3140693. The reversal of 3140665 is 5660413.

It is not a de Polignac number, because 3140665 - 2⁵ = 3140633 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, 745 + ... + 2614.

It is an arithmetic number, because the mean of its divisors is an integer number (272160).

Almost surely, 2^3140665 is an apocalyptic number.

It is an amenable number.

3140665 is a deficient number, since it is larger than the sum of its proper divisors (1213895).

3140665 is a wasteful number, since it uses less digits than its factorization.

3140665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3392.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 3140665 is about 1772.1921453386. The cubic root of 3140665 is about 146.4447717834. Note that the first 3 decimals are identical.

The spelling of 3140665 in words is "three million, one hundred forty thousand, six hundred sixty-five".