233136564 has 12 divisors (see below), whose sum is σ = 543985344. Its totient is φ = 77712184.

The previous prime is 233136557. The next prime is 233136577. The reversal of 233136564 is 465631332.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9714012 + ... + 9714035.

It is an arithmetic number, because the mean of its divisors is an integer number (45332112).

Almost surely, 2^233136564 is an apocalyptic number.

It is an amenable number.

233136564 is an abundant number, since it is smaller than the sum of its proper divisors (310848780).

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

233136564 is a wasteful number, since it uses less digits than its factorization.

233136564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19428054 (or 19428052 counting only the distinct ones).

The product of its digits is 38880, while the sum is 33.

The square root of 233136564 is about 15268.8101697546. The cubic root of 233136564 is about 615.4651461550.

Adding to 233136564 its reverse (465631332), we get a palindrome (698767896).

The spelling of 233136564 in words is "two hundred thirty-three million, one hundred thirty-six thousand, five hundred sixty-four".