138810627 has 12 divisors (see below), whose sum is σ = 212298840. Its totient is φ = 87096768.

The previous prime is 138810577. The next prime is 138810629. The reversal of 138810627 is 726018831.

138810627 is a `hidden beast` number, since 13 + 8 + 8 + 10 + 627 = 666.

It is not a de Polignac number, because 138810627 - 2⁷ = 138810499 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 138810591 and 138810600.

It is not an unprimeable number, because it can be changed into a prime (138810629) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 453477 + ... + 453782.

It is an arithmetic number, because the mean of its divisors is an integer number (17691570).

Almost surely, 2^138810627 is an apocalyptic number.

138810627 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

138810627 is a deficient number, since it is larger than the sum of its proper divisors (73488213).

138810627 is a wasteful number, since it uses less digits than its factorization.

138810627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907282 (or 907279 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 138810627 is about 11781.7921811582. The cubic root of 138810627 is about 517.7747948956.

The spelling of 138810627 in words is "one hundred thirty-eight million, eight hundred ten thousand, six hundred twenty-seven".