1226665115 has 8 divisors (see below), whose sum is σ = 1585228848. Its totient is φ = 905844960.

The previous prime is 1226665109. The next prime is 1226665127. The reversal of 1226665115 is 5115666221.

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

It is not a de Polignac number, because 1226665115 - 2¹⁶ = 1226599579 is a prime.

It is a Duffinian number.

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, 9435821 + ... + 9435950.

It is an arithmetic number, because the mean of its divisors is an integer number (198153606).

Almost surely, 2^1226665115 is an apocalyptic number.

1226665115 is a deficient number, since it is larger than the sum of its proper divisors (358563733).

1226665115 is a wasteful number, since it uses less digits than its factorization.

1226665115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18871789.

The product of its digits is 21600, while the sum is 35.

The square root of 1226665115 is about 35023.7792792268. The cubic root of 1226665115 is about 1070.4720643908.

The spelling of 1226665115 in words is "one billion, two hundred twenty-six million, six hundred sixty-five thousand, one hundred fifteen".