4012565 has 16 divisors (see below), whose sum is σ = 4976640. Its totient is φ = 3104640.

The previous prime is 4012549. The next prime is 4012573. The reversal of 4012565 is 5652104.

It is not a de Polignac number, because 4012565 - 2⁴ = 4012549 is a prime.

It is a super-2 number, since 2×4012565² = 32201355758450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4012565.

It is a congruent number.

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, 31532 + ... + 31658.

It is an arithmetic number, because the mean of its divisors is an integer number (311040).

Almost surely, 2^4012565 is an apocalyptic number.

It is an amenable number.

4012565 is a deficient number, since it is larger than the sum of its proper divisors (964075).

4012565 is a wasteful number, since it uses less digits than its factorization.

4012565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 4012565 is about 2003.1387870040. The cubic root of 4012565 is about 158.9061455784.

Adding to 4012565 its reverse (5652104), we get a palindrome (9664669).

The spelling of 4012565 in words is "four million, twelve thousand, five hundred sixty-five".