139648983 has 8 divisors (see below), whose sum is σ = 186295296. Its totient is φ = 93051000.

The previous prime is 139648979. The next prime is 139648987. The reversal of 139648983 is 389846931.

It is an interprime number because it is at equal distance from previous prime (139648979) and next prime (139648987).

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

It is not a de Polignac number, because 139648983 - 2² = 139648979 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139648987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4693 + ... + 17358.

It is an arithmetic number, because the mean of its divisors is an integer number (23286912).

Almost surely, 2^139648983 is an apocalyptic number.

139648983 is a deficient number, since it is larger than the sum of its proper divisors (46646313).

139648983 is a wasteful number, since it uses less digits than its factorization.

139648983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24165.

The product of its digits is 1119744, while the sum is 51.

The square root of 139648983 is about 11817.3170813006. The cubic root of 139648983 is about 518.8150818234.

The spelling of 139648983 in words is "one hundred thirty-nine million, six hundred forty-eight thousand, nine hundred eighty-three".