163157838 has 8 divisors (see below), whose sum is σ = 326315688. Its totient is φ = 54385944.

The previous prime is 163157803. The next prime is 163157843. The reversal of 163157838 is 838751361.

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

163157838 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 163157838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13596481 + ... + 13596492.

It is an arithmetic number, because the mean of its divisors is an integer number (40789461).

Almost surely, 2^163157838 is an apocalyptic number.

163157838 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163157838 is a wasteful number, since it uses less digits than its factorization.

163157838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27192978.

The product of its digits is 120960, while the sum is 42.

The square root of 163157838 is about 12773.3252522591. The cubic root of 163157838 is about 546.4318190295.

The spelling of 163157838 in words is "one hundred sixty-three million, one hundred fifty-seven thousand, eight hundred thirty-eight".