1276152341 has 2 divisors, whose sum is σ = 1276152342. Its totient is φ = 1276152340.

The previous prime is 1276152331. The next prime is 1276152343. The reversal of 1276152341 is 1432516721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1046781316 + 229371025 = 32354^2 + 15145^2 .

It is an emirp because it is prime and its reverse (1432516721) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1276152341 is a prime.

It is a Sophie Germain prime.

Together with 1276152343, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1276152298 and 1276152307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1276152343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638076170 + 638076171.

It is an arithmetic number, because the mean of its divisors is an integer number (638076171).

Almost surely, 2^1276152341 is an apocalyptic number.

It is an amenable number.

1276152341 is a deficient number, since it is larger than the sum of its proper divisors (1).

1276152341 is an equidigital number, since it uses as much as digits as its factorization.

1276152341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 32.

The square root of 1276152341 is about 35723.2744999671. The cubic root of 1276152341 is about 1084.6780220683.

The spelling of 1276152341 in words is "one billion, two hundred seventy-six million, one hundred fifty-two thousand, three hundred forty-one".