138750886 has 16 divisors (see below), whose sum is σ = 210276000. Its totient is φ = 68662528.

The previous prime is 138750869. The next prime is 138750893. The reversal of 138750886 is 688057831.

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, 104535 + ... + 105853.

It is an arithmetic number, because the mean of its divisors is an integer number (13142250).

Almost surely, 2^138750886 is an apocalyptic number.

138750886 is a deficient number, since it is larger than the sum of its proper divisors (71525114).

138750886 is a wasteful number, since it uses less digits than its factorization.

138750886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823.

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 138750886 is about 11779.2565979352. The cubic root of 138750886 is about 517.7005046598.

The spelling of 138750886 in words is "one hundred thirty-eight million, seven hundred fifty thousand, eight hundred eighty-six".