198837011 has 2 divisors, whose sum is σ = 198837012. Its totient is φ = 198837010.

The previous prime is 198836993. The next prime is 198837059. The reversal of 198837011 is 110738891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 198837011 - 2¹⁸ = 198574867 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (198837091) 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, 99418505 + 99418506.

It is an arithmetic number, because the mean of its divisors is an integer number (99418506).

Almost surely, 2^198837011 is an apocalyptic number.

198837011 is a deficient number, since it is larger than the sum of its proper divisors (1).

198837011 is an equidigital number, since it uses as much as digits as its factorization.

198837011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 38.

The square root of 198837011 is about 14100.9578043479. The cubic root of 198837011 is about 583.6678098836.

The spelling of 198837011 in words is "one hundred ninety-eight million, eight hundred thirty-seven thousand, eleven".