192138 has 16 divisors (see below), whose sum is σ = 397056. Its totient is φ = 61920.

The previous prime is 192133. The next prime is 192149. The reversal of 192138 is 831291.

It is a super-2 number, since 2×192138² = 73834022088, which contains 22 as substring.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 192138.

It is not an unprimeable number, because it can be changed into a prime (192133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331 + ... + 702.

It is an arithmetic number, because the mean of its divisors is an integer number (24816).

2¹⁹²¹³⁸ is an apocalyptic number.

192138 is an abundant number, since it is smaller than the sum of its proper divisors (204918).

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

192138 is a wasteful number, since it uses less digits than its factorization.

192138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069.

The product of its digits is 432, while the sum is 24.

The square root of 192138 is about 438.3354879541. The cubic root of 192138 is about 57.7038010606.

The spelling of 192138 in words is "one hundred ninety-two thousand, one hundred thirty-eight".