2542751 has 8 divisors (see below), whose sum is σ = 2749680. Its totient is φ = 2343168.

The previous prime is 2542739. The next prime is 2542759. The reversal of 2542751 is 1572452.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2542751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2542751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2542759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1106 + ... + 2511.

It is an arithmetic number, because the mean of its divisors is an integer number (343710).

2^2542751 is an apocalyptic number.

2542751 is a deficient number, since it is larger than the sum of its proper divisors (206929).

2542751 is a wasteful number, since it uses less digits than its factorization.

2542751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3673.

The product of its digits is 2800, while the sum is 26.

The square root of 2542751 is about 1594.6005769471. The cubic root of 2542751 is about 136.4901395911.

Subtracting from 2542751 its reverse (1572452), we obtain a cube (970299 = 99³).

The spelling of 2542751 in words is "two million, five hundred forty-two thousand, seven hundred fifty-one".