233136436 has 24 divisors (see below), whose sum is σ = 465219720. Its totient is φ = 101271552.

The previous prime is 233136433. The next prime is 233136437. The reversal of 233136436 is 634631332.

It is a happy number.

233136436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 25603600 + 207532836 = 5060^2 + 14406^2 .

It is a junction number, because it is equal to n+sod(n) for n = 233136398 and 233136407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233136433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130981 + ... + 132748.

It is an arithmetic number, because the mean of its divisors is an integer number (19384155).

Almost surely, 2^233136436 is an apocalyptic number.

233136436 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

233136436 is a deficient number, since it is larger than the sum of its proper divisors (232083284).

233136436 is a wasteful number, since it uses less digits than its factorization.

233136436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263763 (or 263761 counting only the distinct ones).

The product of its digits is 23328, while the sum is 31.

The square root of 233136436 is about 15268.8059782027. The cubic root of 233136436 is about 615.4650335178.

Adding to 233136436 its reverse (634631332), we get a palindrome (867767768).

The spelling of 233136436 in words is "two hundred thirty-three million, one hundred thirty-six thousand, four hundred thirty-six".