198967313 has 2 divisors, whose sum is σ = 198967314. Its totient is φ = 198967312.

The previous prime is 198967291. The next prime is 198967333. The reversal of 198967313 is 313769891.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167236624 + 31730689 = 12932^2 + 5633^2 .

It is a cyclic number.

It is not a de Polignac number, because 198967313 - 2¹⁴ = 198950929 is a prime.

It is not a weakly prime, because it can be changed into another prime (198967333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99483656 + 99483657.

It is an arithmetic number, because the mean of its divisors is an integer number (99483657).

Almost surely, 2^198967313 is an apocalyptic number.

It is an amenable number.

198967313 is a deficient number, since it is larger than the sum of its proper divisors (1).

198967313 is an equidigital number, since it uses as much as digits as its factorization.

198967313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 47.

The square root of 198967313 is about 14105.5773720894. The cubic root of 198967313 is about 583.7952785669.

The spelling of 198967313 in words is "one hundred ninety-eight million, nine hundred sixty-seven thousand, three hundred thirteen".