2645045 has 8 divisors (see below), whose sum is σ = 3418296. Its totient is φ = 1953216.

The previous prime is 2645011. The next prime is 2645051. The reversal of 2645045 is 5405462.

It can be written as a sum of positive squares in 4 ways, for example, as 14161 + 2630884 = 119^2 + 1622^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2645045 - 2⁶ = 2644981 is a prime.

It is a super-3 number, since 3×2645045³ = 55516291813330398375, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20282 + ... + 20411.

It is an arithmetic number, because the mean of its divisors is an integer number (427287).

2^2645045 is an apocalyptic number.

It is an amenable number.

2645045 is a deficient number, since it is larger than the sum of its proper divisors (773251).

2645045 is a wasteful number, since it uses less digits than its factorization.

2645045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40711.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2645045 is about 1626.3594313681. The cubic root of 2645045 is about 138.2964466738.

The spelling of 2645045 in words is "two million, six hundred forty-five thousand, forty-five".