233142653 has 4 divisors (see below), whose sum is σ = 233173500. Its totient is φ = 233111808.

The previous prime is 233142631. The next prime is 233142659. The reversal of 233142653 is 356241332.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 27019204 + 206123449 = 5198^2 + 14357^2 .

It is a cyclic number.

It is not a de Polignac number, because 233142653 - 2⁶ = 233142589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233142659) 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, 4451 + ... + 22047.

It is an arithmetic number, because the mean of its divisors is an integer number (58293375).

Almost surely, 2^233142653 is an apocalyptic number.

It is an amenable number.

233142653 is a deficient number, since it is larger than the sum of its proper divisors (30847).

233142653 is a wasteful number, since it uses less digits than its factorization.

233142653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30846.

The product of its digits is 12960, while the sum is 29.

The square root of 233142653 is about 15269.0095618544. The cubic root of 233142653 is about 615.4705042944.

Adding to 233142653 its reverse (356241332), we get a palindrome (589383985).

The spelling of 233142653 in words is "two hundred thirty-three million, one hundred forty-two thousand, six hundred fifty-three".