1265241316 has 48 divisors (see below), whose sum is σ = 2435973120. Its totient is φ = 573075360.

The previous prime is 1265241283. The next prime is 1265241323. The reversal of 1265241316 is 6131425621.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 129325 + ... + 138763.

It is an arithmetic number, because the mean of its divisors is an integer number (50749440).

Almost surely, 2^1265241316 is an apocalyptic number.

It is an amenable number.

1265241316 is a deficient number, since it is larger than the sum of its proper divisors (1170731804).

1265241316 is a wasteful number, since it uses less digits than its factorization.

1265241316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9544 (or 9542 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 1265241316 is about 35570.2307555068. The cubic root of 1265241316 is about 1081.5778594070.

Adding to 1265241316 its reverse (6131425621), we get a palindrome (7396666937).

The spelling of 1265241316 in words is "one billion, two hundred sixty-five million, two hundred forty-one thousand, three hundred sixteen".