2549131 has 4 divisors (see below), whose sum is σ = 2745232. Its totient is φ = 2353032.

The previous prime is 2549123. The next prime is 2549143. The reversal of 2549131 is 1319452.

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 2549131 - 2³ = 2549123 is a prime.

It is a super-2 number, since 2×2549131² = 12996137710322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2549096 and 2549105.

It is not an unprimeable number, because it can be changed into a prime (2549101) 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, 98031 + ... + 98056.

It is an arithmetic number, because the mean of its divisors is an integer number (686308).

2^2549131 is an apocalyptic number.

2549131 is a deficient number, since it is larger than the sum of its proper divisors (196101).

2549131 is a wasteful number, since it uses less digits than its factorization.

2549131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196100.

The product of its digits is 1080, while the sum is 25.

The square root of 2549131 is about 1596.5998246273. The cubic root of 2549131 is about 136.6041997555.

The spelling of 2549131 in words is "two million, five hundred forty-nine thousand, one hundred thirty-one".