138089950 has 24 divisors (see below), whose sum is σ = 257461200. Its totient is φ = 55104000.

The previous prime is 138089923. The next prime is 138089969. The reversal of 138089950 is 59980831.

It is a junction number, because it is equal to n+sod(n) for n = 138089897 and 138089906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19375 + ... + 25525.

It is an arithmetic number, because the mean of its divisors is an integer number (10727550).

Almost surely, 2^138089950 is an apocalyptic number.

138089950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138089950 is a deficient number, since it is larger than the sum of its proper divisors (119371250).

138089950 is a wasteful number, since it uses less digits than its factorization.

138089950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6612 (or 6607 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 138089950 is about 11751.1680270516. The cubic root of 138089950 is about 516.8771786405.

The spelling of 138089950 in words is "one hundred thirty-eight million, eighty-nine thousand, nine hundred fifty".