1284115 has 16 divisors (see below), whose sum is σ = 1854720. Its totient is φ = 833760.

The previous prime is 1284083. The next prime is 1284131. The reversal of 1284115 is 5114821.

1284115 = 165² + 166² + ... + 202².

It is not a de Polignac number, because 1284115 - 2⁵ = 1284083 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301 + ... + 1630.

It is an arithmetic number, because the mean of its divisors is an integer number (115920).

2^1284115 is an apocalyptic number.

1284115 is a deficient number, since it is larger than the sum of its proper divisors (570605).

1284115 is a wasteful number, since it uses less digits than its factorization.

1284115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1962.

The product of its digits is 320, while the sum is 22.

The square root of 1284115 is about 1133.1879808752. The cubic root of 1284115 is about 108.6929325812.

Adding to 1284115 its reverse (5114821), we get a palindrome (6398936).

The spelling of 1284115 in words is "one million, two hundred eighty-four thousand, one hundred fifteen".