1265516 has 12 divisors (see below), whose sum is σ = 2531088. Its totient is φ = 542352.

The previous prime is 1265503. The next prime is 1265519. The reversal of 1265516 is 6155621.

1265516 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1265519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22571 + ... + 22626.

It is an arithmetic number, because the mean of its divisors is an integer number (210924).

2^1265516 is an apocalyptic number.

It is an amenable number.

1265516 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1265516 is a wasteful number, since it uses less digits than its factorization.

1265516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45208 (or 45206 counting only the distinct ones).

The product of its digits is 1800, while the sum is 26.

The square root of 1265516 is about 1124.9515545125. The cubic root of 1265516 is about 108.1656123959.

The spelling of 1265516 in words is "one million, two hundred sixty-five thousand, five hundred sixteen".