1260665 has 16 divisors (see below), whose sum is σ = 1747200. Its totient is φ = 855360.

The previous prime is 1260661. The next prime is 1260673. The reversal of 1260665 is 5660621.

It is not a de Polignac number, because 1260665 - 2² = 1260661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1260661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6236 + ... + 6434.

It is an arithmetic number, because the mean of its divisors is an integer number (109200).

2^1260665 is an apocalyptic number.

It is an amenable number.

1260665 is a deficient number, since it is larger than the sum of its proper divisors (486535).

1260665 is a wasteful number, since it uses less digits than its factorization.

1260665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1260665 is about 1122.7933915017. The cubic root of 1260665 is about 108.0272279315.

The spelling of 1260665 in words is "one million, two hundred sixty thousand, six hundred sixty-five".