1198402319 has 2 divisors, whose sum is σ = 1198402320. Its totient is φ = 1198402318.

The previous prime is 1198402307. The next prime is 1198402321. The reversal of 1198402319 is 9132048911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1198402319 - 2²⁰ = 1197353743 is a prime.

It is a super-2 number, since 2×1198402319² = 2872336236369155522, which contains 22 as substring.

Together with 1198402321, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1198402339) 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, 599201159 + 599201160.

It is an arithmetic number, because the mean of its divisors is an integer number (599201160).

Almost surely, 2^1198402319 is an apocalyptic number.

1198402319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1198402319 is an equidigital number, since it uses as much as digits as its factorization.

1198402319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 1198402319 is about 34617.9479316727. The cubic root of 1198402319 is about 1062.1867515596.

The spelling of 1198402319 in words is "one billion, one hundred ninety-eight million, four hundred two thousand, three hundred nineteen".