1198974013 has 2 divisors, whose sum is σ = 1198974014. Its totient is φ = 1198974012.

The previous prime is 1198973983. The next prime is 1198974017. The reversal of 1198974013 is 3104798911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 698914969 + 500059044 = 26437^2 + 22362^2 .

It is a cyclic number.

It is not a de Polignac number, because 1198974013 - 2⁵ = 1198973981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1198974017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 599487006 + 599487007.

It is an arithmetic number, because the mean of its divisors is an integer number (599487007).

Almost surely, 2^1198974013 is an apocalyptic number.

It is an amenable number.

1198974013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1198974013 is an equidigital number, since it uses as much as digits as its factorization.

1198974013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 1198974013 is about 34626.2041379069. The cubic root of 1198974013 is about 1062.3556289745.

The spelling of 1198974013 in words is "one billion, one hundred ninety-eight million, nine hundred seventy-four thousand, thirteen".