1265567422 has 16 divisors (see below), whose sum is σ = 2201927040. Its totient is φ = 534290328.

The previous prime is 1265567399. The next prime is 1265567437. The reversal of 1265567422 is 2247655621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 673672 + ... + 675547.

It is an arithmetic number, because the mean of its divisors is an integer number (137620440).

Almost surely, 2^1265567422 is an apocalyptic number.

1265567422 is a deficient number, since it is larger than the sum of its proper divisors (936359618).

1265567422 is a wasteful number, since it uses less digits than its factorization.

1265567422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349295.

The product of its digits is 201600, while the sum is 40.

The square root of 1265567422 is about 35574.8144338098. The cubic root of 1265567422 is about 1081.6707741542.

The spelling of 1265567422 in words is "one billion, two hundred sixty-five million, five hundred sixty-seven thousand, four hundred twenty-two".