138514982 has 4 divisors (see below), whose sum is σ = 207772476. Its totient is φ = 69257490.

The previous prime is 138514979. The next prime is 138515011. The reversal of 138514982 is 289415831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 289415831 = 23 ⋅12583297.

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, 34628744 + ... + 34628747.

It is an arithmetic number, because the mean of its divisors is an integer number (51943119).

Almost surely, 2^138514982 is an apocalyptic number.

138514982 is a deficient number, since it is larger than the sum of its proper divisors (69257494).

138514982 is an equidigital number, since it uses as much as digits as its factorization.

138514982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69257493.

The product of its digits is 69120, while the sum is 41.

The square root of 138514982 is about 11769.2388029133. The cubic root of 138514982 is about 517.4069404106.

The spelling of 138514982 in words is "one hundred thirty-eight million, five hundred fourteen thousand, nine hundred eighty-two".