138484982 has 8 divisors (see below), whose sum is σ = 208643256. Its totient is φ = 68937232.

The previous prime is 138484981. The next prime is 138484987. The reversal of 138484982 is 289484831.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138484981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152063 + ... + 152970.

It is an arithmetic number, because the mean of its divisors is an integer number (26080407).

Almost surely, 2^138484982 is an apocalyptic number.

138484982 is a deficient number, since it is larger than the sum of its proper divisors (70158274).

138484982 is a wasteful number, since it uses less digits than its factorization.

138484982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305262.

The product of its digits is 442368, while the sum is 47.

The square root of 138484982 is about 11767.9642249626. The cubic root of 138484982 is about 517.3695838524.

The spelling of 138484982 in words is "one hundred thirty-eight million, four hundred eighty-four thousand, nine hundred eighty-two".