138852270 has 48 divisors (see below), whose sum is σ = 362411712. Its totient is φ = 36884160.

The previous prime is 138852257. The next prime is 138852283. The reversal of 138852270 is 72258831.

138852270 is a `hidden beast` number, since 1 + 388 + 5 + 2 + 270 = 666.

It is an interprime number because it is at equal distance from previous prime (138852257) and next prime (138852283).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21544 + ... + 27236.

It is an arithmetic number, because the mean of its divisors is an integer number (7550244).

Almost surely, 2^138852270 is an apocalyptic number.

138852270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138852270 is an abundant number, since it is smaller than the sum of its proper divisors (223559442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138852270 is a wasteful number, since it uses less digits than its factorization.

138852270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5977 (or 5974 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 138852270 is about 11783.5593094786. The cubic root of 138852270 is about 517.8265669643.

The spelling of 138852270 in words is "one hundred thirty-eight million, eight hundred fifty-two thousand, two hundred seventy".