1226995705 has 8 divisors (see below), whose sum is σ = 1585656072. Its totient is φ = 906089088.

The previous prime is 1226995691. The next prime is 1226995709. The reversal of 1226995705 is 5075996221.

It can be written as a sum of positive squares in 4 ways, for example, as 189640441 + 1037355264 = 13771^2 + 32208^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1226995705 - 2¹¹ = 1226993657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1226995709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9438364 + ... + 9438493.

It is an arithmetic number, because the mean of its divisors is an integer number (198207009).

Almost surely, 2^1226995705 is an apocalyptic number.

It is an amenable number.

1226995705 is a deficient number, since it is larger than the sum of its proper divisors (358660367).

1226995705 is a wasteful number, since it uses less digits than its factorization.

1226995705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18876875.

The product of its (nonzero) digits is 340200, while the sum is 46.

The square root of 1226995705 is about 35028.4984691037. The cubic root of 1226995705 is about 1070.5682209182.

The spelling of 1226995705 in words is "one billion, two hundred twenty-six million, nine hundred ninety-five thousand, seven hundred five".