138310670 has 8 divisors (see below), whose sum is σ = 248959224. Its totient is φ = 55324264.

The previous prime is 138310663. The next prime is 138310673. The reversal of 138310670 is 76013831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138310673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6915524 + ... + 6915543.

It is an arithmetic number, because the mean of its divisors is an integer number (31119903).

Almost surely, 2^138310670 is an apocalyptic number.

138310670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138310670 is a deficient number, since it is larger than the sum of its proper divisors (110648554).

138310670 is a wasteful number, since it uses less digits than its factorization.

138310670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13831074.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 138310670 is about 11760.5556841503. Note that the first 3 decimals coincide. The cubic root of 138310670 is about 517.1524204932.

The spelling of 138310670 in words is "one hundred thirty-eight million, three hundred ten thousand, six hundred seventy".