497157 has 4 divisors (see below), whose sum is σ = 662880. Its totient is φ = 331436.

The previous prime is 497153. The next prime is 497171. The reversal of 497157 is 751794.

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 a cyclic number.

It is not a de Polignac number, because 497157 - 2² = 497153 is a prime.

It is a D-number.

497157 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497153) 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, 82857 + ... + 82862.

It is an arithmetic number, because the mean of its divisors is an integer number (165720).

2⁴⁹⁷¹⁵⁷ is an apocalyptic number.

It is an amenable number.

497157 is a deficient number, since it is larger than the sum of its proper divisors (165723).

497157 is a wasteful number, since it uses less digits than its factorization.

497157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165722.

The product of its digits is 8820, while the sum is 33.

The square root of 497157 is about 705.0936108064. The cubic root of 497157 is about 79.2193338678.

The spelling of 497157 in words is "four hundred ninety-seven thousand, one hundred fifty-seven".