138070670 has 16 divisors (see below), whose sum is σ = 251674560. Its totient is φ = 54528864.

The previous prime is 138070649. The next prime is 138070697. The reversal of 138070670 is 76070831.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 86597 + ... + 88176.

It is an arithmetic number, because the mean of its divisors is an integer number (15729660).

Almost surely, 2^138070670 is an apocalyptic number.

138070670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138070670 is a deficient number, since it is larger than the sum of its proper divisors (113603890).

138070670 is a wasteful number, since it uses less digits than its factorization.

138070670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174859.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 138070670 is about 11750.3476544313. The cubic root of 138070670 is about 516.8531222052.

The spelling of 138070670 in words is "one hundred thirty-eight million, seventy thousand, six hundred seventy".