1226459447 has 4 divisors (see below), whose sum is σ = 1236116736. Its totient is φ = 1216802160.

The previous prime is 1226459431. The next prime is 1226459449. The reversal of 1226459447 is 7449546221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1226459447 - 2⁴ = 1226459431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1226459398 and 1226459407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226459449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4828454 + ... + 4828707.

It is an arithmetic number, because the mean of its divisors is an integer number (309029184).

Almost surely, 2^1226459447 is an apocalyptic number.

1226459447 is a deficient number, since it is larger than the sum of its proper divisors (9657289).

1226459447 is an equidigital number, since it uses as much as digits as its factorization.

1226459447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9657288.

The product of its digits is 483840, while the sum is 44.

The square root of 1226459447 is about 35020.8430366832. The cubic root of 1226459447 is about 1070.4122343819.

The spelling of 1226459447 in words is "one billion, two hundred twenty-six million, four hundred fifty-nine thousand, four hundred forty-seven".