163457 has 8 divisors (see below), whose sum is σ = 196800. Its totient is φ = 132624.

The previous prime is 163433. The next prime is 163469. The reversal of 163457 is 754361.

163457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 163457 - 2⁶ = 163393 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 (163417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482 + ... + 747.

It is an arithmetic number, because the mean of its divisors is an integer number (24600).

2¹⁶³⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

163457 is a deficient number, since it is larger than the sum of its proper divisors (33343).

163457 is a wasteful number, since it uses less digits than its factorization.

163457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255.

The product of its digits is 2520, while the sum is 26.

The square root of 163457 is about 404.2981573047. The cubic root of 163457 is about 54.6765589541.

The spelling of 163457 in words is "one hundred sixty-three thousand, four hundred fifty-seven".