492157 has 4 divisors (see below), whose sum is σ = 518080. Its totient is φ = 466236.

The previous prime is 492113. The next prime is 492227. The reversal of 492157 is 751294.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 751294 = 2 ⋅375647.

It is a cyclic number.

It is not a de Polignac number, because 492157 - 2⁷ = 492029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492257) 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 3 ways as a sum of consecutive naturals, for example, 12933 + ... + 12970.

It is an arithmetic number, because the mean of its divisors is an integer number (129520).

2⁴⁹²¹⁵⁷ is an apocalyptic number.

It is an amenable number.

492157 is a deficient number, since it is larger than the sum of its proper divisors (25923).

492157 is a wasteful number, since it uses less digits than its factorization.

492157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25922.

The product of its digits is 2520, while the sum is 28.

The square root of 492157 is about 701.5390224357. The cubic root of 492157 is about 78.9528640463.

The spelling of 492157 in words is "four hundred ninety-two thousand, one hundred fifty-seven".