1276552741 has 2 divisors, whose sum is σ = 1276552742. Its totient is φ = 1276552740.

The previous prime is 1276552691. The next prime is 1276552747. The reversal of 1276552741 is 1472556721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1018950241 + 257602500 = 31921^2 + 16050^2 .

It is a cyclic number.

It is not a de Polignac number, because 1276552741 - 2¹⁷ = 1276421669 is a prime.

It is a super-2 number, since 2×1276552741² = 3259173801109226162, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1276552694 and 1276552703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1276552747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638276370 + 638276371.

It is an arithmetic number, because the mean of its divisors is an integer number (638276371).

Almost surely, 2^1276552741 is an apocalyptic number.

It is an amenable number.

1276552741 is a deficient number, since it is larger than the sum of its proper divisors (1).

1276552741 is an equidigital number, since it uses as much as digits as its factorization.

1276552741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 117600, while the sum is 40.

The square root of 1276552741 is about 35728.8782499535. The cubic root of 1276552741 is about 1084.7914514900.

The spelling of 1276552741 in words is "one billion, two hundred seventy-six million, five hundred fifty-two thousand, seven hundred forty-one".