1224551133 has 12 divisors (see below), whose sum is σ = 1904857500. Its totient is φ = 753569856.

The previous prime is 1224551101. The next prime is 1224551143. The reversal of 1224551133 is 3311554221.

It can be written as a sum of positive squares in 2 ways, for example, as 836539929 + 388011204 = 28923^2 + 19698^2 .

It is not a de Polignac number, because 1224551133 - 2⁵ = 1224551101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1224551097 and 1224551106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224551143) 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, 5233008 + ... + 5233241.

It is an arithmetic number, because the mean of its divisors is an integer number (158738125).

Almost surely, 2^1224551133 is an apocalyptic number.

1224551133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1224551133 is a deficient number, since it is larger than the sum of its proper divisors (680306367).

1224551133 is a wasteful number, since it uses less digits than its factorization.

1224551133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10466268 (or 10466265 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 1224551133 is about 34993.5870267682. The cubic root of 1224551133 is about 1069.8567756006.

The spelling of 1224551133 in words is "one billion, two hundred twenty-four million, five hundred fifty-one thousand, one hundred thirty-three".