272381 has 2 divisors, whose sum is σ = 272382. Its totient is φ = 272380.

The previous prime is 272369. The next prime is 272383. The reversal of 272381 is 183272.

272381 is an esthetic number in base 9, because in such base its adjacent digits differ by 1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217156 + 55225 = 466^2 + 235^2 .

It is a cyclic number.

It is not a de Polignac number, because 272381 - 2⁶ = 272317 is a prime.

It is a super-2 number, since 2×272381² = 148382818322, which contains 22 as substring.

Together with 272383, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (272383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136190 + 136191.

It is an arithmetic number, because the mean of its divisors is an integer number (136191).

2²⁷²³⁸¹ is an apocalyptic number.

It is an amenable number.

272381 is a deficient number, since it is larger than the sum of its proper divisors (1).

272381 is an equidigital number, since it uses as much as digits as its factorization.

272381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 672, while the sum is 23.

The square root of 272381 is about 521.9013316710. The cubic root of 272381 is about 64.8224741687.

The spelling of 272381 in words is "two hundred seventy-two thousand, three hundred eighty-one".