1226515 has 16 divisors (see below), whose sum is σ = 1564416. Its totient is φ = 921600.

The previous prime is 1226503. The next prime is 1226531. The reversal of 1226515 is 5156221.

It is not a de Polignac number, because 1226515 - 2⁵ = 1226483 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6259 + ... + 6451.

It is an arithmetic number, because the mean of its divisors is an integer number (97776).

2^1226515 is an apocalyptic number.

1226515 is a deficient number, since it is larger than the sum of its proper divisors (337901).

1226515 is a wasteful number, since it uses less digits than its factorization.

1226515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270.

The product of its digits is 600, while the sum is 22.

The square root of 1226515 is about 1107.4813768186. The cubic root of 1226515 is about 107.0428395730.

The spelling of 1226515 in words is "one million, two hundred twenty-six thousand, five hundred fifteen".