1982012313 has 8 divisors (see below), whose sum is σ = 2644510176. Its totient is φ = 1320428000.

The previous prime is 1982012309. The next prime is 1982012321. The reversal of 1982012313 is 3132102891.

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 1982012313 - 2² = 1982012309 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1982012363) 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, 223308 + ... + 232013.

It is an arithmetic number, because the mean of its divisors is an integer number (330563772).

Almost surely, 2^1982012313 is an apocalyptic number.

It is an amenable number.

1982012313 is a deficient number, since it is larger than the sum of its proper divisors (662497863).

1982012313 is a wasteful number, since it uses less digits than its factorization.

1982012313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456775.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 1982012313 is about 44519.7968661134. The cubic root of 1982012313 is about 1256.1324916101.

The spelling of 1982012313 in words is "one billion, nine hundred eighty-two million, twelve thousand, three hundred thirteen".