1198402313 has 4 divisors (see below), whose sum is σ = 1205329668. Its totient is φ = 1191474960.

The previous prime is 1198402307. The next prime is 1198402319. The reversal of 1198402313 is 3132048911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3132048911 = 113 ⋅27717247.

It is an interprime number because it is at equal distance from previous prime (1198402307) and next prime (1198402319).

It can be written as a sum of positive squares in 2 ways, for example, as 917605264 + 280797049 = 30292^2 + 16757^2 .

It is a cyclic number.

It is not a de Polignac number, because 1198402313 - 2⁴ = 1198402297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1198402313.

It is not an unprimeable number, because it can be changed into a prime (1198402319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3463418 + ... + 3463763.

It is an arithmetic number, because the mean of its divisors is an integer number (301332417).

Almost surely, 2^1198402313 is an apocalyptic number.

It is an amenable number.

1198402313 is a deficient number, since it is larger than the sum of its proper divisors (6927355).

1198402313 is an equidigital number, since it uses as much as digits as its factorization.

1198402313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6927354.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 1198402313 is about 34617.9478450124. The cubic root of 1198402313 is about 1062.1867497870.

The spelling of 1198402313 in words is "one billion, one hundred ninety-eight million, four hundred two thousand, three hundred thirteen".