138214670 has 48 divisors (see below), whose sum is σ = 276363360. Its totient is φ = 49727040.

The previous prime is 138214663. The next prime is 138214673. The reversal of 138214670 is 76412831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138214673) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124076 + ... + 125184.

It is an arithmetic number, because the mean of its divisors is an integer number (5757570).

Almost surely, 2^138214670 is an apocalyptic number.

138214670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138214670 is a deficient number, since it is larger than the sum of its proper divisors (138148690).

138214670 is a wasteful number, since it uses less digits than its factorization.

138214670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241 (or 1230 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 138214670 is about 11756.4735358865. The cubic root of 138214670 is about 517.0327427580.

The spelling of 138214670 in words is "one hundred thirty-eight million, two hundred fourteen thousand, six hundred seventy".