163713157 has 4 divisors (see below), whose sum is σ = 165162060. Its totient is φ = 162264256.

The previous prime is 163713133. The next prime is 163713181. The reversal of 163713157 is 751317361.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (163713133) and next prime (163713181).

It can be written as a sum of positive squares in 2 ways, for example, as 4726276 + 158986881 = 2174^2 + 12609^2 .

It is a cyclic number.

It is not a de Polignac number, because 163713157 - 2¹⁵ = 163680389 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 (163783157) 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, 724282 + ... + 724507.

It is an arithmetic number, because the mean of its divisors is an integer number (41290515).

Almost surely, 2^163713157 is an apocalyptic number.

It is an amenable number.

163713157 is a deficient number, since it is larger than the sum of its proper divisors (1448903).

163713157 is a wasteful number, since it uses less digits than its factorization.

163713157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448902.

The product of its digits is 13230, while the sum is 34.

The square root of 163713157 is about 12795.0442359532. The cubic root of 163713157 is about 547.0510565326.

It can be divided in two parts, 16 and 3713157, that added together give a palindrome (3713173).

The spelling of 163713157 in words is "one hundred sixty-three million, seven hundred thirteen thousand, one hundred fifty-seven".