276440953 has 2 divisors, whose sum is σ = 276440954. Its totient is φ = 276440952.

The previous prime is 276440947. The next prime is 276440993. The reversal of 276440953 is 359044672.

It is a happy number.

It is an a-pointer prime, because the next prime (276440993) can be obtained adding 276440953 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 269846329 + 6594624 = 16427^2 + 2568^2 .

It is a cyclic number.

It is not a de Polignac number, because 276440953 - 2⁵ = 276440921 is a prime.

It is not a weakly prime, because it can be changed into another prime (276440903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138220476 + 138220477.

It is an arithmetic number, because the mean of its divisors is an integer number (138220477).

Almost surely, 2^276440953 is an apocalyptic number.

It is an amenable number.

276440953 is a deficient number, since it is larger than the sum of its proper divisors (1).

276440953 is an equidigital number, since it uses as much as digits as its factorization.

276440953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 276440953 is about 16626.5135551624. The cubic root of 276440953 is about 651.4295581753.

The spelling of 276440953 in words is "two hundred seventy-six million, four hundred forty thousand, nine hundred fifty-three".