1982219341 has 2 divisors, whose sum is σ = 1982219342. Its totient is φ = 1982219340.

The previous prime is 1982219311. The next prime is 1982219399. The reversal of 1982219341 is 1439122891.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1967366025 + 14853316 = 44355^2 + 3854^2 .

It is an emirp because it is prime and its reverse (1439122891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1982219341 - 2¹⁵ = 1982186573 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1982219294 and 1982219303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1982219311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991109670 + 991109671.

It is an arithmetic number, because the mean of its divisors is an integer number (991109671).

Almost surely, 2^1982219341 is an apocalyptic number.

It is an amenable number.

1982219341 is a deficient number, since it is larger than the sum of its proper divisors (1).

1982219341 is an equidigital number, since it uses as much as digits as its factorization.

1982219341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 40.

The square root of 1982219341 is about 44522.1219283178. The cubic root of 1982219341 is about 1256.1762258732.

The spelling of 1982219341 in words is "one billion, nine hundred eighty-two million, two hundred nineteen thousand, three hundred forty-one".