1980453359 has 2 divisors, whose sum is σ = 1980453360. Its totient is φ = 1980453358.

The previous prime is 1980453313. The next prime is 1980453401. The reversal of 1980453359 is 9533540891.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1980453359 - 2⁸ = 1980453103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1980450359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 990226679 + 990226680.

It is an arithmetic number, because the mean of its divisors is an integer number (990226680).

Almost surely, 2^1980453359 is an apocalyptic number.

1980453359 is a deficient number, since it is larger than the sum of its proper divisors (1).

1980453359 is an equidigital number, since it uses as much as digits as its factorization.

1980453359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 583200, while the sum is 47.

The square root of 1980453359 is about 44502.2848739253. The cubic root of 1980453359 is about 1255.8030677537.

The spelling of 1980453359 in words is "one billion, nine hundred eighty million, four hundred fifty-three thousand, three hundred fifty-nine".