1233173172 has 48 divisors (see below), whose sum is σ = 3587415552. Its totient is φ = 320304480.

The previous prime is 1233173171. The next prime is 1233173197. The reversal of 1233173172 is 2713713321.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233173171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 666378 + ... + 668225.

It is an arithmetic number, because the mean of its divisors is an integer number (74737824).

Almost surely, 2^1233173172 is an apocalyptic number.

1233173172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1233173172 is an abundant number, since it is smaller than the sum of its proper divisors (2354242380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1233173172 is a wasteful number, since it uses less digits than its factorization.

1233173172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334628 (or 1334626 counting only the distinct ones).

The product of its digits is 5292, while the sum is 30.

The square root of 1233173172 is about 35116.5654926560. The cubic root of 1233173172 is about 1072.3618517894.

Adding to 1233173172 its reverse (2713713321), we get a palindrome (3946886493).

The spelling of 1233173172 in words is "one billion, two hundred thirty-three million, one hundred seventy-three thousand, one hundred seventy-two".