163830138 has 32 divisors (see below), whose sum is σ = 334264320. Its totient is φ = 53515440.

The previous prime is 163830101. The next prime is 163830143. The reversal of 163830138 is 831038361.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 163830099 and 163830108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164823 + ... + 165813.

It is an arithmetic number, because the mean of its divisors is an integer number (10445760).

Almost surely, 2^163830138 is an apocalyptic number.

163830138 is an abundant number, since it is smaller than the sum of its proper divisors (170434182).

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

163830138 is a wasteful number, since it uses less digits than its factorization.

163830138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 163830138 is about 12799.6147598277. The cubic root of 163830138 is about 547.1813236910.

Adding to 163830138 its reverse (831038361), we get a palindrome (994868499).

The spelling of 163830138 in words is "one hundred sixty-three million, eight hundred thirty thousand, one hundred thirty-eight".