1275265982 has 16 divisors (see below), whose sum is σ = 2029088880. Its totient is φ = 599038848.

The previous prime is 1275265961. The next prime is 1275265987. The reversal of 1275265982 is 2895625721.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1275265987) 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 in 7 ways as a sum of consecutive naturals, for example, 14732 + ... + 52607.

It is an arithmetic number, because the mean of its divisors is an integer number (126818055).

Almost surely, 2^1275265982 is an apocalyptic number.

1275265982 is a deficient number, since it is larger than the sum of its proper divisors (753822898).

1275265982 is a wasteful number, since it uses less digits than its factorization.

1275265982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67915.

The product of its digits is 604800, while the sum is 47.

The square root of 1275265982 is about 35710.8664414629. The cubic root of 1275265982 is about 1084.4268407720.

The spelling of 1275265982 in words is "one billion, two hundred seventy-five million, two hundred sixty-five thousand, nine hundred eighty-two".