1982553193 has 2 divisors, whose sum is σ = 1982553194. Its totient is φ = 1982553192.

The previous prime is 1982553143. The next prime is 1982553229. The reversal of 1982553193 is 3913552891.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1863044569 + 119508624 = 43163^2 + 10932^2 .

It is an emirp because it is prime and its reverse (3913552891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1982553193 - 2²¹ = 1980456041 is a prime.

It is not a weakly prime, because it can be changed into another prime (1982553113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991276596 + 991276597.

It is an arithmetic number, because the mean of its divisors is an integer number (991276597).

Almost surely, 2^1982553193 is an apocalyptic number.

It is an amenable number.

1982553193 is a deficient number, since it is larger than the sum of its proper divisors (1).

1982553193 is an equidigital number, since it uses as much as digits as its factorization.

1982553193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 291600, while the sum is 46.

The square root of 1982553193 is about 44525.8710526813. The cubic root of 1982553193 is about 1256.2467450457.

The spelling of 1982553193 in words is "one billion, nine hundred eighty-two million, five hundred fifty-three thousand, one hundred ninety-three".