276229361 has 2 divisors, whose sum is σ = 276229362. Its totient is φ = 276229360.

The previous prime is 276229307. The next prime is 276229363. The reversal of 276229361 is 163922672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 256480225 + 19749136 = 16015^2 + 4444^2 .

It is a cyclic number.

It is not a de Polignac number, because 276229361 - 2¹⁴ = 276212977 is a prime.

Together with 276229363, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (276229363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138114680 + 138114681.

It is an arithmetic number, because the mean of its divisors is an integer number (138114681).

Almost surely, 2^276229361 is an apocalyptic number.

It is an amenable number.

276229361 is a deficient number, since it is larger than the sum of its proper divisors (1).

276229361 is an equidigital number, since it uses as much as digits as its factorization.

276229361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 38.

The square root of 276229361 is about 16620.1492472240. The cubic root of 276229361 is about 651.2633111412.

It can be divided in two parts, 2762 and 29361, that added together give a palindrome (32123).

The spelling of 276229361 in words is "two hundred seventy-six million, two hundred twenty-nine thousand, three hundred sixty-one".