276353381 has 2 divisors, whose sum is σ = 276353382. Its totient is φ = 276353380.

The previous prime is 276353369. The next prime is 276353401. The reversal of 276353381 is 183353672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 272085025 + 4268356 = 16495^2 + 2066^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-276353381 is a prime.

It is a super-2 number, since 2×276353381² = 152742382380262322, 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 (276353281) 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, 138176690 + 138176691.

It is an arithmetic number, because the mean of its divisors is an integer number (138176691).

Almost surely, 2^276353381 is an apocalyptic number.

It is an amenable number.

276353381 is a deficient number, since it is larger than the sum of its proper divisors (1).

276353381 is an equidigital number, since it uses as much as digits as its factorization.

276353381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 38.

The square root of 276353381 is about 16623.8798419623. The cubic root of 276353381 is about 651.3607634790.

The spelling of 276353381 in words is "two hundred seventy-six million, three hundred fifty-three thousand, three hundred eighty-one".