1226621063 has 8 divisors (see below), whose sum is σ = 1256220576. Its totient is φ = 1197364000.

The previous prime is 1226621047. The next prime is 1226621069. The reversal of 1226621063 is 3601266221.

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 1226621063 - 2⁴ = 1226621047 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 (1226621069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78356 + ... + 92697.

It is an arithmetic number, because the mean of its divisors is an integer number (157027572).

Almost surely, 2^1226621063 is an apocalyptic number.

1226621063 is a deficient number, since it is larger than the sum of its proper divisors (29599513).

1226621063 is a wasteful number, since it uses less digits than its factorization.

1226621063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171225.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1226621063 is about 35023.1503865657. The cubic root of 1226621063 is about 1070.4592499724.

Adding to 1226621063 its reverse (3601266221), we get a palindrome (4827887284).

The spelling of 1226621063 in words is "one billion, two hundred twenty-six million, six hundred twenty-one thousand, sixty-three".