1980000613 has 2 divisors, whose sum is σ = 1980000614. Its totient is φ = 1980000612.

The previous prime is 1980000571. The next prime is 1980000629. The reversal of 1980000613 is 3160000891.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1809906849 + 170093764 = 42543^2 + 13042^2 .

It is an emirp because it is prime and its reverse (3160000891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1980000613 - 2²⁵ = 1946446181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1980000313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 990000306 + 990000307.

It is an arithmetic number, because the mean of its divisors is an integer number (990000307).

Almost surely, 2^1980000613 is an apocalyptic number.

It is an amenable number.

1980000613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1980000613 is an equidigital number, since it uses as much as digits as its factorization.

1980000613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 1980000613 is about 44497.1978106487. The cubic root of 1980000613 is about 1255.7073652312.

The spelling of 1980000613 in words is "one billion, nine hundred eighty million, six hundred thirteen", and thus it is an aban number.