2645291 has 8 divisors (see below), whose sum is σ = 2915568. Its totient is φ = 2380000.

The previous prime is 2645267. The next prime is 2645297. The reversal of 2645291 is 1925462.

It is a happy number.

2645291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2645291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2645297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80 + ... + 2301.

It is an arithmetic number, because the mean of its divisors is an integer number (364446).

2^2645291 is an apocalyptic number.

2645291 is a deficient number, since it is larger than the sum of its proper divisors (270277).

2645291 is a wasteful number, since it uses less digits than its factorization.

2645291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2493.

The product of its digits is 4320, while the sum is 29.

The square root of 2645291 is about 1626.4350586482. The cubic root of 2645291 is about 138.3007339192.

It can be divided in two parts, 264 and 5291, that added together give a palindrome (5555).

The spelling of 2645291 in words is "two million, six hundred forty-five thousand, two hundred ninety-one".