998181083 has 2 divisors, whose sum is σ = 998181084. Its totient is φ = 998181082.

The previous prime is 998181077. The next prime is 998181103. The reversal of 998181083 is 380181899.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 998181083 - 2¹² = 998176987 is a prime.

It is not a weakly prime, because it can be changed into another prime (998181683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499090541 + 499090542.

It is an arithmetic number, because the mean of its divisors is an integer number (499090542).

Almost surely, 2^998181083 is an apocalyptic number.

998181083 is a deficient number, since it is larger than the sum of its proper divisors (1).

998181083 is an equidigital number, since it uses as much as digits as its factorization.

998181083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 47.

The square root of 998181083 is about 31594.0039089698. The cubic root of 998181083 is about 999.3933263549.

The spelling of 998181083 in words is "nine hundred ninety-eight million, one hundred eighty-one thousand, eighty-three".