198270713 has 2 divisors, whose sum is σ = 198270714. Its totient is φ = 198270712.

The previous prime is 198270707. The next prime is 198270733. The reversal of 198270713 is 317072891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143688169 + 54582544 = 11987^2 + 7388^2 .

It is an emirp because it is prime and its reverse (317072891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 198270713 - 2¹⁶ = 198205177 is a prime.

It is a super-2 number, since 2×198270713² = 78622551267056738, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p_10988372 and since 198270713 and 10988372 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (198270733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99135356 + 99135357.

It is an arithmetic number, because the mean of its divisors is an integer number (99135357).

Almost surely, 2^198270713 is an apocalyptic number.

It is an amenable number.

198270713 is a deficient number, since it is larger than the sum of its proper divisors (1).

198270713 is an equidigital number, since it uses as much as digits as its factorization.

198270713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 198270713 is about 14080.8633613142. The cubic root of 198270713 is about 583.1131777289.

The spelling of 198270713 in words is "one hundred ninety-eight million, two hundred seventy thousand, seven hundred thirteen".