140013982 has 4 divisors (see below), whose sum is σ = 210020976. Its totient is φ = 70006990.

The previous prime is 140013953. The next prime is 140013997. The reversal of 140013982 is 289310041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 289310041 = 8059 ⋅35899.

It is a self number, because there is not a number n which added to its sum of digits gives 140013982.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35003494 + ... + 35003497.

It is an arithmetic number, because the mean of its divisors is an integer number (52505244).

Almost surely, 2^140013982 is an apocalyptic number.

140013982 is a deficient number, since it is larger than the sum of its proper divisors (70006994).

140013982 is an equidigital number, since it uses as much as digits as its factorization.

140013982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70006993.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 140013982 is about 11832.7503987873. The cubic root of 140013982 is about 519.2666956698.

The spelling of 140013982 in words is "one hundred forty million, thirteen thousand, nine hundred eighty-two".