138190 has 16 divisors (see below), whose sum is σ = 268128. Its totient is φ = 50976.

The previous prime is 138181. The next prime is 138191. The reversal of 138190 is 91831.

It is a super-2 number, since 2×138190² = 38192952200, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138191) 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, 402 + ... + 661.

It is an arithmetic number, because the mean of its divisors is an integer number (16758).

2¹³⁸¹⁹⁰ is an apocalyptic number.

138190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138190 is a deficient number, since it is larger than the sum of its proper divisors (129938).

138190 is a wasteful number, since it uses less digits than its factorization.

138190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 138190 is about 371.7391558607. The cubic root of 138190 is about 51.7001979124.

The spelling of 138190 in words is "one hundred thirty-eight thousand, one hundred ninety".