1265967875 has 16 divisors (see below), whose sum is σ = 1598976288. Its totient is φ = 1000564000.

The previous prime is 1265967851. The next prime is 1265967893. The reversal of 1265967875 is 5787695621.

It is not a de Polignac number, because 1265967875 - 2³⁰ = 192226051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1265967875.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50636 + ... + 71385.

It is an arithmetic number, because the mean of its divisors is an integer number (99936018).

Almost surely, 2^1265967875 is an apocalyptic number.

1265967875 is a deficient number, since it is larger than the sum of its proper divisors (333008413).

1265967875 is an equidigital number, since it uses as much as digits as its factorization.

1265967875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122119 (or 122109 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 56.

The square root of 1265967875 is about 35580.4423103480. The cubic root of 1265967875 is about 1081.7848501595.

The spelling of 1265967875 in words is "one billion, two hundred sixty-five million, nine hundred sixty-seven thousand, eight hundred seventy-five".