2492121 has 16 divisors (see below), whose sum is σ = 3473408. Its totient is φ = 1587600.

The previous prime is 2492117. The next prime is 2492123. The reversal of 2492121 is 1212942.

It is not a de Polignac number, because 2492121 - 2² = 2492117 is a prime.

It is a Smith number, since the sum of its digits (21) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2492123) 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, 11706 + ... + 11916.

It is an arithmetic number, because the mean of its divisors is an integer number (217088).

2^2492121 is an apocalyptic number.

It is an amenable number.

2492121 is a deficient number, since it is larger than the sum of its proper divisors (981287).

2492121 is a wasteful number, since it uses less digits than its factorization.

2492121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372.

The product of its digits is 288, while the sum is 21.

The square root of 2492121 is about 1578.6453053172. The cubic root of 2492121 is about 135.5781514733.

It can be divided in two parts, 24921 and 21, that added together give a palindrome (24942).

The spelling of 2492121 in words is "two million, four hundred ninety-two thousand, one hundred twenty-one".