2247276761 has 2 divisors, whose sum is σ = 2247276762. Its totient is φ = 2247276760.

The previous prime is 2247276743. The next prime is 2247276781. The reversal of 2247276761 is 1676727422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1166905600 + 1080371161 = 34160^2 + 32869^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2247276761 is a prime.

It is a super-2 number, since 2×2247276761² = 10100505681061302242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2247276701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1123638380 + 1123638381.

It is an arithmetic number, because the mean of its divisors is an integer number (1123638381).

Almost surely, 2^2247276761 is an apocalyptic number.

It is an amenable number.

2247276761 is a deficient number, since it is larger than the sum of its proper divisors (1).

2247276761 is an equidigital number, since it uses as much as digits as its factorization.

2247276761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 395136, while the sum is 44.

The square root of 2247276761 is about 47405.4507519969. The cubic root of 2247276761 is about 1309.8418240345.

The spelling of 2247276761 in words is "two billion, two hundred forty-seven million, two hundred seventy-six thousand, seven hundred sixty-one".