1275425911 has 2 divisors, whose sum is σ = 1275425912. Its totient is φ = 1275425910.

The previous prime is 1275425903. The next prime is 1275425917. The reversal of 1275425911 is 1195245721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1275425911 - 2³ = 1275425903 is a prime.

It is a super-2 number, since 2×1275425911² = 3253422508900359842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1275425917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637712955 + 637712956.

It is an arithmetic number, because the mean of its divisors is an integer number (637712956).

Almost surely, 2^1275425911 is an apocalyptic number.

1275425911 is a deficient number, since it is larger than the sum of its proper divisors (1).

1275425911 is an equidigital number, since it uses as much as digits as its factorization.

1275425911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 37.

The square root of 1275425911 is about 35713.1055916452. The cubic root of 1275425911 is about 1084.4721709366.

The spelling of 1275425911 in words is "one billion, two hundred seventy-five million, four hundred twenty-five thousand, nine hundred eleven".