2542631 has 8 divisors (see below), whose sum is σ = 3129504. Its totient is φ = 2011680.

The previous prime is 2542621. The next prime is 2542649. The reversal of 2542631 is 1362452.

2542631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2542631 - 2⁶ = 2542567 is a prime.

It is a super-2 number, since 2×2542631² = 12929944804322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2542597 and 2542606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2542621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13880 + ... + 14061.

It is an arithmetic number, because the mean of its divisors is an integer number (391188).

2^2542631 is an apocalyptic number.

2542631 is a deficient number, since it is larger than the sum of its proper divisors (586873).

2542631 is a wasteful number, since it uses less digits than its factorization.

2542631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27961.

The product of its digits is 1440, while the sum is 23.

The square root of 2542631 is about 1594.5629495257. The cubic root of 2542631 is about 136.4879924317.

The spelling of 2542631 in words is "two million, five hundred forty-two thousand, six hundred thirty-one".