1275115741 has 2 divisors, whose sum is σ = 1275115742. Its totient is φ = 1275115740.

The previous prime is 1275115717. The next prime is 1275115763. The reversal of 1275115741 is 1475115721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 999887641 + 275228100 = 31621^2 + 16590^2 .

It is a cyclic number.

It is not a de Polignac number, because 1275115741 - 2⁹ = 1275115229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1275115697 and 1275115706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1275115771) 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, 637557870 + 637557871.

It is an arithmetic number, because the mean of its divisors is an integer number (637557871).

Almost surely, 2^1275115741 is an apocalyptic number.

It is an amenable number.

1275115741 is a deficient number, since it is larger than the sum of its proper divisors (1).

1275115741 is an equidigital number, since it uses as much as digits as its factorization.

1275115741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9800, while the sum is 34.

The square root of 1275115741 is about 35708.7628041073. The cubic root of 1275115741 is about 1084.3842531147.

The spelling of 1275115741 in words is "one billion, two hundred seventy-five million, one hundred fifteen thousand, seven hundred forty-one".