2745549 has 16 divisors (see below), whose sum is σ = 4136640. Its totient is φ = 1799280.

The previous prime is 2745541. The next prime is 2745569. The reversal of 2745549 is 9455472.

It is not a de Polignac number, because 2745549 - 2³ = 2745541 is a prime.

It is a super-2 number, since 2×2745549² = 15076078622802, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 814 + ... + 2480.

It is an arithmetic number, because the mean of its divisors is an integer number (258540).

2^2745549 is an apocalyptic number.

It is an amenable number.

2745549 is a deficient number, since it is larger than the sum of its proper divisors (1391091).

2745549 is a wasteful number, since it uses less digits than its factorization.

2745549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737 (or 1731 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 2745549 is about 1656.9698247102. The cubic root of 2745549 is about 140.0263385820.

The spelling of 2745549 in words is "two million, seven hundred forty-five thousand, five hundred forty-nine".