1980013 has 8 divisors (see below), whose sum is σ = 2318400. Its totient is φ = 1655520.

The previous prime is 1979993. The next prime is 1980019. The reversal of 1980013 is 3100891.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1980013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980019) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 3163 + ... + 3736.

It is an arithmetic number, because the mean of its divisors is an integer number (289800).

2^1980013 is an apocalyptic number.

It is an amenable number.

1980013 is a deficient number, since it is larger than the sum of its proper divisors (338387).

1980013 is an equidigital number, since it uses as much as digits as its factorization.

1980013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6947.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1980013 is about 1407.1293472883. The cubic root of 1980013 is about 125.5709983819.

The spelling of 1980013 in words is "one million, nine hundred eighty thousand, thirteen".