1982139703 has 8 divisors (see below), whose sum is σ = 2002511840. Its totient is φ = 1961863200.

The previous prime is 1982139689. The next prime is 1982139707. The reversal of 1982139703 is 3079312891.

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

It is a cyclic number.

It is not a de Polignac number, because 1982139703 - 2⁵ = 1982139671 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1982139703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982139707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18133 + ... + 65521.

It is an arithmetic number, because the mean of its divisors is an integer number (250313980).

Almost surely, 2^1982139703 is an apocalyptic number.

1982139703 is a deficient number, since it is larger than the sum of its proper divisors (20372137).

1982139703 is a wasteful number, since it uses less digits than its factorization.

1982139703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47817.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 1982139703 is about 44521.2275549541. The cubic root of 1982139703 is about 1256.1594028607.

The spelling of 1982139703 in words is "one billion, nine hundred eighty-two million, one hundred thirty-nine thousand, seven hundred three".