1247065 has 8 divisors (see below), whose sum is σ = 1575360. Its totient is φ = 945072.

The previous prime is 1247063. The next prime is 1247089. The reversal of 1247065 is 5607421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1247065 - 2¹ = 1247063 is a prime.

It is a super-2 number, since 2×1247065² = 3110342228450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1247063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6469 + ... + 6658.

It is an arithmetic number, because the mean of its divisors is an integer number (196920).

2^1247065 is an apocalyptic number.

It is an amenable number.

1247065 is a deficient number, since it is larger than the sum of its proper divisors (328295).

1247065 is a wasteful number, since it uses less digits than its factorization.

1247065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13151.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 1247065 is about 1116.7206454615. The cubic root of 1247065 is about 107.6373582177.

The spelling of 1247065 in words is "one million, two hundred forty-seven thousand, sixty-five".