3122665 has 16 divisors (see below), whose sum is σ = 4612608. Its totient is φ = 1976256.

The previous prime is 3122657. The next prime is 3122671. The reversal of 3122665 is 5662213.

It is a cyclic number.

It is not a de Polignac number, because 3122665 - 2³ = 3122657 is a prime.

It is a nialpdrome in base 13.

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, 2977 + ... + 3886.

It is an arithmetic number, because the mean of its divisors is an integer number (288288).

Almost surely, 2^3122665 is an apocalyptic number.

3122665 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3122665 is a deficient number, since it is larger than the sum of its proper divisors (1489943).

3122665 is a wasteful number, since it uses less digits than its factorization.

3122665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6888.

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

The square root of 3122665 is about 1767.1063918169. The cubic root of 3122665 is about 146.1644640699.

Adding to 3122665 its reverse (5662213), we get a palindrome (8784878).

The spelling of 3122665 in words is "three million, one hundred twenty-two thousand, six hundred sixty-five".