276447145 has 16 divisors (see below), whose sum is σ = 359084880. Its totient is φ = 203099904.

The previous prime is 276447139. The next prime is 276447167. The reversal of 276447145 is 541744672.

It can be written as a sum of positive squares in 8 ways, for example, as 488601 + 275958544 = 699^2 + 16612^2 .

It is a cyclic number.

It is not a de Polignac number, because 276447145 - 2³ = 276447137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 276447098 and 276447107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2011 + ... + 23599.

It is an arithmetic number, because the mean of its divisors is an integer number (22442805).

Almost surely, 2^276447145 is an apocalyptic number.

It is an amenable number.

276447145 is a deficient number, since it is larger than the sum of its proper divisors (82637735).

276447145 is a wasteful number, since it uses less digits than its factorization.

276447145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21804.

The product of its digits is 188160, while the sum is 40.

The square root of 276447145 is about 16626.6997627310. The cubic root of 276447145 is about 651.4344219285.

The spelling of 276447145 in words is "two hundred seventy-six million, four hundred forty-seven thousand, one hundred forty-five".