922138 has 8 divisors (see below), whose sum is σ = 1580832. Its totient is φ = 395196.

The previous prime is 922123. The next prime is 922169. The reversal of 922138 is 831229.

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

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

922138 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32920 + ... + 32947.

It is an arithmetic number, because the mean of its divisors is an integer number (197604).

2⁹²²¹³⁸ is an apocalyptic number.

922138 is a deficient number, since it is larger than the sum of its proper divisors (658694).

922138 is a wasteful number, since it uses less digits than its factorization.

922138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65876.

The product of its digits is 864, while the sum is 25.

The square root of 922138 is about 960.2801674511. The cubic root of 922138 is about 97.3341647309.

Subtracting from 922138 its reverse (831229), we obtain a palindrome (90909).

The spelling of 922138 in words is "nine hundred twenty-two thousand, one hundred thirty-eight".