1226551463 has 4 divisors (see below), whose sum is σ = 1226671680. Its totient is φ = 1226431248.

The previous prime is 1226551439. The next prime is 1226551471. The reversal of 1226551463 is 3641556221.

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 1226551463 - 2¹⁰ = 1226550439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226521463) 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, 43223 + ... + 65736.

It is an arithmetic number, because the mean of its divisors is an integer number (306667920).

Almost surely, 2^1226551463 is an apocalyptic number.

1226551463 is a deficient number, since it is larger than the sum of its proper divisors (120217).

1226551463 is a wasteful number, since it uses less digits than its factorization.

1226551463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120216.

The product of its digits is 43200, while the sum is 35.

The square root of 1226551463 is about 35022.1567439814. The cubic root of 1226551463 is about 1070.4390031945.

The spelling of 1226551463 in words is "one billion, two hundred twenty-six million, five hundred fifty-one thousand, four hundred sixty-three".