1226447243 has 8 divisors (see below), whose sum is σ = 1402528512. Its totient is φ = 1050584616.

The previous prime is 1226447137. The next prime is 1226447263. The reversal of 1226447243 is 3427446221.

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 1226447243 - 2²² = 1222252939 is a prime.

It is a super-3 number, since 3×1226447243³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1226447263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42455 + ... + 65232.

It is an arithmetic number, because the mean of its divisors is an integer number (175316064).

Almost surely, 2^1226447243 is an apocalyptic number.

1226447243 is a deficient number, since it is larger than the sum of its proper divisors (176081269).

1226447243 is a wasteful number, since it uses less digits than its factorization.

1226447243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109321.

The product of its digits is 64512, while the sum is 35.

The square root of 1226447243 is about 35020.6687971546. The cubic root of 1226447243 is about 1070.4086839576.

The spelling of 1226447243 in words is "one billion, two hundred twenty-six million, four hundred forty-seven thousand, two hundred forty-three".