272131687 has 2 divisors, whose sum is σ = 272131688. Its totient is φ = 272131686.

The previous prime is 272131681. The next prime is 272131697. The reversal of 272131687 is 786131272.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 272131687 - 2²³ = 263743079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (272131681) 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, 136065843 + 136065844.

It is an arithmetic number, because the mean of its divisors is an integer number (136065844).

Almost surely, 2^272131687 is an apocalyptic number.

272131687 is a deficient number, since it is larger than the sum of its proper divisors (1).

272131687 is an equidigital number, since it uses as much as digits as its factorization.

272131687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 37.

The square root of 272131687 is about 16496.4143679771. The cubic root of 272131687 is about 648.0269058266.

It can be divided in two parts, 27213 and 1687, that added together give a square (28900 = 170²).

The spelling of 272131687 in words is "two hundred seventy-two million, one hundred thirty-one thousand, six hundred eighty-seven".