272426381 has 2 divisors, whose sum is σ = 272426382. Its totient is φ = 272426380.

The previous prime is 272426369. The next prime is 272426393. The reversal of 272426381 is 183624272.

It is a balanced prime because it is at equal distance from previous prime (272426369) and next prime (272426393).

It can be written as a sum of positive squares in only one way, i.e., 233050756 + 39375625 = 15266^2 + 6275^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-272426381 is a prime.

It is a super-2 number, since 2×272426381² = 148432266129514322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (272426321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136213190 + 136213191.

It is an arithmetic number, because the mean of its divisors is an integer number (136213191).

Almost surely, 2^272426381 is an apocalyptic number.

It is an amenable number.

272426381 is a deficient number, since it is larger than the sum of its proper divisors (1).

272426381 is an equidigital number, since it uses as much as digits as its factorization.

272426381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 35.

The square root of 272426381 is about 16505.3440133794. The cubic root of 272426381 is about 648.2607396128.

The spelling of 272426381 in words is "two hundred seventy-two million, four hundred twenty-six thousand, three hundred eighty-one".