138190563 has 32 divisors (see below), whose sum is σ = 235077120. Its totient is φ = 78593760.

The previous prime is 138190543. The next prime is 138190571. The reversal of 138190563 is 365091831.

It is a happy number.

138190563 is a `hidden beast` number, since 1 + 3 + 8 + 1 + 90 + 563 = 666.

It is not a de Polignac number, because 138190563 - 2⁵ = 138190531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138190543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41293 + ... + 44513.

It is an arithmetic number, because the mean of its divisors is an integer number (7346160).

Almost surely, 2^138190563 is an apocalyptic number.

138190563 is a deficient number, since it is larger than the sum of its proper divisors (96886557).

138190563 is a wasteful number, since it uses less digits than its factorization.

138190563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3464 (or 3458 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 138190563 is about 11755.4482262481. The cubic root of 138190563 is about 517.0026812287.

The spelling of 138190563 in words is "one hundred thirty-eight million, one hundred ninety thousand, five hundred sixty-three".