1232817133 has 4 divisors (see below), whose sum is σ = 1233374428. Its totient is φ = 1232259840.

The previous prime is 1232817119. The next prime is 1232817143. The reversal of 1232817133 is 3317182321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3317182321 = 2003 ⋅1656107.

It can be written as a sum of positive squares in 2 ways, for example, as 452285289 + 780531844 = 21267^2 + 27938^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1232817133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1232817095 and 1232817104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232817143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275316 + ... + 279757.

It is an arithmetic number, because the mean of its divisors is an integer number (308343607).

Almost surely, 2^1232817133 is an apocalyptic number.

It is an amenable number.

1232817133 is a deficient number, since it is larger than the sum of its proper divisors (557295).

1232817133 is an equidigital number, since it uses as much as digits as its factorization.

1232817133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557294.

The product of its digits is 6048, while the sum is 31.

The square root of 1232817133 is about 35111.4957385754. The cubic root of 1232817133 is about 1072.2586385505.

Adding to 1232817133 its reverse (3317182321), we get a palindrome (4549999454).

The spelling of 1232817133 in words is "one billion, two hundred thirty-two million, eight hundred seventeen thousand, one hundred thirty-three".