1290065 has 32 divisors (see below), whose sum is σ = 1935360. Its totient is φ = 806400.

The previous prime is 1290049. The next prime is 1290077. The reversal of 1290065 is 5600921.

It is not a de Polignac number, because 1290065 - 2⁴ = 1290049 is a prime.

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 1290065.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31445 + ... + 31485.

It is an arithmetic number, because the mean of its divisors is an integer number (60480).

2^1290065 is an apocalyptic number.

It is an amenable number.

1290065 is a deficient number, since it is larger than the sum of its proper divisors (645295).

1290065 is a wasteful number, since it uses less digits than its factorization.

1290065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 1290065 is about 1135.8102834541. The cubic root of 1290065 is about 108.8605516911.

Adding to 1290065 its reverse (5600921), we get a palindrome (6890986).

The spelling of 1290065 in words is "one million, two hundred ninety thousand, sixty-five".