138054190 has 16 divisors (see below), whose sum is σ = 261576720. Its totient is φ = 52315200.

The previous prime is 138054187. The next prime is 138054221. The reversal of 138054190 is 91450831.

It is a super-2 number, since 2×138054190² = 38117918753112200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363111 + ... + 363490.

It is an arithmetic number, because the mean of its divisors is an integer number (16348545).

Almost surely, 2^138054190 is an apocalyptic number.

138054190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138054190 is a deficient number, since it is larger than the sum of its proper divisors (123522530).

138054190 is a wasteful number, since it uses less digits than its factorization.

138054190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726627.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 138054190 is about 11749.6463776575. The cubic root of 138054190 is about 516.8325576678.

The spelling of 138054190 in words is "one hundred thirty-eight million, fifty-four thousand, one hundred ninety".