1265306042 has 96 divisors (see below), whose sum is σ = 2607583104. Its totient is φ = 447033600.

The previous prime is 1265306027. The next prime is 1265306051. The reversal of 1265306042 is 2406035621.

It is a junction number, because it is equal to n+sod(n) for n = 1265305996 and 1265306014.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1587188 + ... + 1587984.

It is an arithmetic number, because the mean of its divisors is an integer number (27162324).

Almost surely, 2^1265306042 is an apocalyptic number.

1265306042 is an abundant number, since it is smaller than the sum of its proper divisors (1342277062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1265306042 is a wasteful number, since it uses less digits than its factorization.

1265306042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904 (or 891 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1265306042 is about 35571.1405777211. The cubic root of 1265306042 is about 1081.5963025330.

The spelling of 1265306042 in words is "one billion, two hundred sixty-five million, three hundred six thousand, forty-two".