1276265325 has 24 divisors (see below), whose sum is σ = 2116872448. Its totient is φ = 678487680.

The previous prime is 1276265299. The next prime is 1276265329. The reversal of 1276265325 is 5235626721.

It is a happy number.

It is not a de Polignac number, because 1276265325 - 2²³ = 1267876717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1276265329) 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 23 ways as a sum of consecutive naturals, for example, 3709 + ... + 50658.

Almost surely, 2^1276265325 is an apocalyptic number.

1276265325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1276265325 is a deficient number, since it is larger than the sum of its proper divisors (840607123).

1276265325 is a wasteful number, since it uses less digits than its factorization.

1276265325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54693 (or 54688 counting only the distinct ones).

The product of its digits is 151200, while the sum is 39.

The square root of 1276265325 is about 35724.8558429562. The cubic root of 1276265325 is about 1084.7100317381.

It can be divided in two parts, 12762 and 65325, that added together give a palindrome (78087).

The spelling of 1276265325 in words is "one billion, two hundred seventy-six million, two hundred sixty-five thousand, three hundred twenty-five".