1226553153 has 12 divisors (see below), whose sum is σ = 1902409200. Its totient is φ = 700887432.

The previous prime is 1226553137. The next prime is 1226553157. The reversal of 1226553153 is 3513556221.

It is a happy number.

It is not a de Polignac number, because 1226553153 - 2⁴ = 1226553137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1226553157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4171803 + ... + 4172096.

It is an arithmetic number, because the mean of its divisors is an integer number (158534100).

Almost surely, 2^1226553153 is an apocalyptic number.

It is an amenable number.

1226553153 is a deficient number, since it is larger than the sum of its proper divisors (675856047).

1226553153 is an equidigital number, since it uses as much as digits as its factorization.

1226553153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8343916 (or 8343909 counting only the distinct ones).

The product of its digits is 27000, while the sum is 33.

The square root of 1226553153 is about 35022.1808715562. The cubic root of 1226553153 is about 1070.4394948279.

The spelling of 1226553153 in words is "one billion, two hundred twenty-six million, five hundred fifty-three thousand, one hundred fifty-three".