138163702 has 4 divisors (see below), whose sum is σ = 207245556. Its totient is φ = 69081850.

The previous prime is 138163693. The next prime is 138163717. The reversal of 138163702 is 207361831.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34540924 + ... + 34540927.

It is an arithmetic number, because the mean of its divisors is an integer number (51811389).

Almost surely, 2^138163702 is an apocalyptic number.

138163702 is a deficient number, since it is larger than the sum of its proper divisors (69081854).

138163702 is an equidigital number, since it uses as much as digits as its factorization.

138163702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69081853.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 138163702 is about 11754.3056791969. The cubic root of 138163702 is about 516.9691813317.

The spelling of 138163702 in words is "one hundred thirty-eight million, one hundred sixty-three thousand, seven hundred two".