138342082 has 8 divisors (see below), whose sum is σ = 207757836. Its totient is φ = 69089472.

The previous prime is 138342067. The next prime is 138342109. The reversal of 138342082 is 280243831.

It can be written as a sum of positive squares in 2 ways, for example, as 137569441 + 772641 = 11729^2 + 879^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38643 + ... + 42070.

Almost surely, 2^138342082 is an apocalyptic number.

138342082 is a deficient number, since it is larger than the sum of its proper divisors (69415754).

138342082 is an equidigital number, since it uses as much as digits as its factorization.

138342082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81572.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 138342082 is about 11761.8910894465. The cubic root of 138342082 is about 517.1915680205.

The spelling of 138342082 in words is "one hundred thirty-eight million, three hundred forty-two thousand, eighty-two".