2731045 has 8 divisors (see below), whose sum is σ = 3309696. Its totient is φ = 2163216.

The previous prime is 2731013. The next prime is 2731049. The reversal of 2731045 is 5401372.

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 2731045 - 2⁵ = 2731013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2731049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2137 + ... + 3166.

It is an arithmetic number, because the mean of its divisors is an integer number (413712).

2^2731045 is an apocalyptic number.

It is an amenable number.

2731045 is a deficient number, since it is larger than the sum of its proper divisors (578651).

2731045 is a wasteful number, since it uses less digits than its factorization.

2731045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5411.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 2731045 is about 1652.5873653154. The cubic root of 2731045 is about 139.7793292279.

The spelling of 2731045 in words is "two million, seven hundred thirty-one thousand, forty-five".