272110661 has 2 divisors, whose sum is σ = 272110662. Its totient is φ = 272110660.

The previous prime is 272110637. The next prime is 272110669. The reversal of 272110661 is 166011272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 265885636 + 6225025 = 16306^2 + 2495^2 .

It is a cyclic number.

It is not a de Polignac number, because 272110661 - 2²² = 267916357 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 272110661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (272110669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136055330 + 136055331.

It is an arithmetic number, because the mean of its divisors is an integer number (136055331).

Almost surely, 2^272110661 is an apocalyptic number.

It is an amenable number.

272110661 is a deficient number, since it is larger than the sum of its proper divisors (1).

272110661 is an equidigital number, since it uses as much as digits as its factorization.

272110661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 272110661 is about 16495.7770656614. Note that the first 3 decimals coincide. The cubic root of 272110661 is about 648.0102156661.

The spelling of 272110661 in words is "two hundred seventy-two million, one hundred ten thousand, six hundred sixty-one".