1236065 has 8 divisors (see below), whose sum is σ = 1491048. Its totient is φ = 983680.

The previous prime is 1236017. The next prime is 1236073. The reversal of 1236065 is 5606321.

It can be written as a sum of positive squares in 4 ways, for example, as 71824 + 1164241 = 268^2 + 1079^2 .

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

It is not a de Polignac number, because 1236065 - 2¹⁰ = 1235041 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1236065.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 635 + ... + 1695.

It is an arithmetic number, because the mean of its divisors is an integer number (186381).

2^1236065 is an apocalyptic number.

It is an amenable number.

1236065 is a deficient number, since it is larger than the sum of its proper divisors (254983).

1236065 is a wasteful number, since it uses less digits than its factorization.

1236065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1236065 is about 1111.7846014404. The cubic root of 1236065 is about 107.3199437622.

The spelling of 1236065 in words is "one million, two hundred thirty-six thousand, sixty-five".