272198609 has 2 divisors, whose sum is σ = 272198610. Its totient is φ = 272198608.

The previous prime is 272198561. The next prime is 272198621. The reversal of 272198609 is 906891272.

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., 263347984 + 8850625 = 16228^2 + 2975^2 .

It is a cyclic number.

It is not a de Polignac number, because 272198609 - 2¹⁶ = 272133073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 272198609.

It is not a weakly prime, because it can be changed into another prime (272198699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136099304 + 136099305.

It is an arithmetic number, because the mean of its divisors is an integer number (136099305).

Almost surely, 2^272198609 is an apocalyptic number.

It is an amenable number.

272198609 is a deficient number, since it is larger than the sum of its proper divisors (1).

272198609 is an equidigital number, since it uses as much as digits as its factorization.

272198609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 272198609 is about 16498.4426234721. The cubic root of 272198609 is about 648.0800219027.

The spelling of 272198609 in words is "two hundred seventy-two million, one hundred ninety-eight thousand, six hundred nine".