2492157 has 4 divisors (see below), whose sum is σ = 3322880. Its totient is φ = 1661436.

The previous prime is 2492153. The next prime is 2492159. The reversal of 2492157 is 7512942.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2492157 - 2² = 2492153 is a prime.

It is a D-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 (2492153) 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, 415357 + ... + 415362.

It is an arithmetic number, because the mean of its divisors is an integer number (830720).

2^2492157 is an apocalyptic number.

It is an amenable number.

2492157 is a deficient number, since it is larger than the sum of its proper divisors (830723).

2492157 is an equidigital number, since it uses as much as digits as its factorization.

2492157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830722.

The product of its digits is 5040, while the sum is 30.

The square root of 2492157 is about 1578.6567074573. The cubic root of 2492157 is about 135.5788043027.

The spelling of 2492157 in words is "two million, four hundred ninety-two thousand, one hundred fifty-seven".