2745311 has 4 divisors (see below), whose sum is σ = 2782992. Its totient is φ = 2707632.

The previous prime is 2745307. The next prime is 2745361. The reversal of 2745311 is 1135472.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2745311 - 2² = 2745307 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 (2745361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18731 + ... + 18876.

It is an arithmetic number, because the mean of its divisors is an integer number (695748).

2^2745311 is an apocalyptic number.

2745311 is a deficient number, since it is larger than the sum of its proper divisors (37681).

2745311 is an equidigital number, since it uses as much as digits as its factorization.

2745311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37680.

The product of its digits is 840, while the sum is 23.

The square root of 2745311 is about 1656.8980053099. The cubic root of 2745311 is about 140.0222923685.

The spelling of 2745311 in words is "two million, seven hundred forty-five thousand, three hundred eleven".