2691265 has 16 divisors (see below), whose sum is σ = 3386880. Its totient is φ = 2050560.

The previous prime is 2691251. The next prime is 2691277. The reversal of 2691265 is 5621962.

It is not a de Polignac number, because 2691265 - 2⁵ = 2691233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

2691265 is a lucky number.

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14946 + ... + 15124.

It is an arithmetic number, because the mean of its divisors is an integer number (211680).

2^2691265 is an apocalyptic number.

It is an amenable number.

2691265 is a deficient number, since it is larger than the sum of its proper divisors (695615).

2691265 is a wasteful number, since it uses less digits than its factorization.

2691265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312.

The product of its digits is 6480, while the sum is 31.

The square root of 2691265 is about 1640.5075434145. The cubic root of 2691265 is about 139.0973387863.

The spelling of 2691265 in words is "two million, six hundred ninety-one thousand, two hundred sixty-five".