1222654623 has 4 divisors (see below), whose sum is σ = 1630206168. Its totient is φ = 815103080.

The previous prime is 1222654621. The next prime is 1222654633. The reversal of 1222654623 is 3264562221.

It is a happy number.

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 1222654623 - 2¹ = 1222654621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222654621) 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, 203775768 + ... + 203775773.

It is an arithmetic number, because the mean of its divisors is an integer number (407551542).

Almost surely, 2^1222654623 is an apocalyptic number.

1222654623 is a deficient number, since it is larger than the sum of its proper divisors (407551545).

1222654623 is an equidigital number, since it uses as much as digits as its factorization.

1222654623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407551544.

The product of its digits is 34560, while the sum is 33.

The square root of 1222654623 is about 34966.4785616167. The cubic root of 1222654623 is about 1069.3041806180.

The spelling of 1222654623 in words is "one billion, two hundred twenty-two million, six hundred fifty-four thousand, six hundred twenty-three".