272131901 has 2 divisors, whose sum is σ = 272131902. Its totient is φ = 272131900.

The previous prime is 272131897. The next prime is 272131931. The reversal of 272131901 is 109131272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 180929401 + 91202500 = 13451^2 + 9550^2 .

It is a cyclic number.

It is not a de Polignac number, because 272131901 - 2² = 272131897 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (272131931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136065950 + 136065951.

It is an arithmetic number, because the mean of its divisors is an integer number (136065951).

Almost surely, 2^272131901 is an apocalyptic number.

It is an amenable number.

272131901 is a deficient number, since it is larger than the sum of its proper divisors (1).

272131901 is an equidigital number, since it uses as much as digits as its factorization.

272131901 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 272131901 is about 16496.4208542338. The cubic root of 272131901 is about 648.0270756926.

The spelling of 272131901 in words is "two hundred seventy-two million, one hundred thirty-one thousand, nine hundred one".