198313741 has 2 divisors, whose sum is σ = 198313742. Its totient is φ = 198313740.

The previous prime is 198313733. The next prime is 198313763. The reversal of 198313741 is 147313891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179426025 + 18887716 = 13395^2 + 4346^2 .

It is a cyclic number.

It is not a de Polignac number, because 198313741 - 2³ = 198313733 is a prime.

It is equal to p_10990648 and since 198313741 and 10990648 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 198313741.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198313781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99156870 + 99156871.

It is an arithmetic number, because the mean of its divisors is an integer number (99156871).

Almost surely, 2^198313741 is an apocalyptic number.

It is an amenable number.

198313741 is a deficient number, since it is larger than the sum of its proper divisors (1).

198313741 is an equidigital number, since it uses as much as digits as its factorization.

198313741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 37.

The square root of 198313741 is about 14082.3911676959. The cubic root of 198313741 is about 583.1553563890.

The spelling of 198313741 in words is "one hundred ninety-eight million, three hundred thirteen thousand, seven hundred forty-one".