163157 has 4 divisors (see below), whose sum is σ = 164076. Its totient is φ = 162240.

The previous prime is 163151. The next prime is 163169. The reversal of 163157 is 751361.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 148996 + 14161 = 386^2 + 119^2 .

It is a cyclic number.

It is not a de Polignac number, because 163157 - 2⁸ = 162901 is a prime.

It is an Ulam 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 (163151) 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, 98 + ... + 579.

It is an arithmetic number, because the mean of its divisors is an integer number (41019).

2¹⁶³¹⁵⁷ is an apocalyptic number.

It is an amenable number.

163157 is a deficient number, since it is larger than the sum of its proper divisors (919).

163157 is an equidigital number, since it uses as much as digits as its factorization.

163157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918.

The product of its digits is 630, while the sum is 23.

The square root of 163157 is about 403.9269735980. The cubic root of 163157 is about 54.6430883513.

The spelling of 163157 in words is "one hundred sixty-three thousand, one hundred fifty-seven".