138622982 has 4 divisors (see below), whose sum is σ = 207934476. Its totient is φ = 69311490.

The previous prime is 138622949. The next prime is 138623011. The reversal of 138622982 is 289226831.

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

It is a super-2 number, since 2×138622982² = 38432662277144648, which contains 22 as substring.

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, 34655744 + ... + 34655747.

It is an arithmetic number, because the mean of its divisors is an integer number (51983619).

Almost surely, 2^138622982 is an apocalyptic number.

138622982 is a deficient number, since it is larger than the sum of its proper divisors (69311494).

138622982 is an equidigital number, since it uses as much as digits as its factorization.

138622982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69311493.

The product of its digits is 82944, while the sum is 41.

The square root of 138622982 is about 11773.8261410639. The cubic root of 138622982 is about 517.5413793761.

The spelling of 138622982 in words is "one hundred thirty-eight million, six hundred twenty-two thousand, nine hundred eighty-two".