272131109 has 2 divisors, whose sum is σ = 272131110. Its totient is φ = 272131108.

The previous prime is 272131073. The next prime is 272131151. The reversal of 272131109 is 901131272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 247905025 + 24226084 = 15745^2 + 4922^2 .

It is a cyclic number.

It is not a de Polignac number, because 272131109 - 2¹² = 272127013 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (272131199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136065554 + 136065555.

It is an arithmetic number, because the mean of its divisors is an integer number (136065555).

Almost surely, 2^272131109 is an apocalyptic number.

It is an amenable number.

272131109 is a deficient number, since it is larger than the sum of its proper divisors (1).

272131109 is an equidigital number, since it uses as much as digits as its factorization.

272131109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 272131109 is about 16496.3968490092. The cubic root of 272131109 is about 648.0264470294.

The spelling of 272131109 in words is "two hundred seventy-two million, one hundred thirty-one thousand, one hundred nine".