2749143 has 8 divisors (see below), whose sum is σ = 3687408. Its totient is φ = 1821824.

The previous prime is 2749133. The next prime is 2749147. The reversal of 2749143 is 3419472.

It is a happy number.

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 2749143 - 2⁴ = 2749127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2749143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2749147) 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, 2130 + ... + 3167.

It is an arithmetic number, because the mean of its divisors is an integer number (460926).

2^2749143 is an apocalyptic number.

2749143 is a deficient number, since it is larger than the sum of its proper divisors (938265).

2749143 is a wasteful number, since it uses less digits than its factorization.

2749143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5473.

The product of its digits is 6048, while the sum is 30.

The square root of 2749143 is about 1658.0539798209. The cubic root of 2749143 is about 140.0874113982.

The spelling of 2749143 in words is "two million, seven hundred forty-nine thousand, one hundred forty-three".