233253512144 has 20 divisors (see below), whose sum is σ = 478512720324. Its totient is φ = 109766358528.

The previous prime is 233253512099. The next prime is 233253512147. The reversal of 233253512144 is 441215352332.

It can be written as a sum of positive squares in 2 ways, for example, as 145246356544 + 88007155600 = 381112^2 + 296660^2 .

It is a super-2 number, since 2×233253512144² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233253512147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428774567 + ... + 428775110.

Almost surely, 2^233253512144 is an apocalyptic number.

It is an amenable number.

233253512144 is an abundant number, since it is smaller than the sum of its proper divisors (245259208180).

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

233253512144 is a wasteful number, since it uses less digits than its factorization.

233253512144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857549702 (or 857549696 counting only the distinct ones).

The product of its digits is 86400, while the sum is 35.

Adding to 233253512144 its reverse (441215352332), we get a palindrome (674468864476).

The spelling of 233253512144 in words is "two hundred thirty-three billion, two hundred fifty-three million, five hundred twelve thousand, one hundred forty-four".