233040131 has 4 divisors (see below), whose sum is σ = 246748392. Its totient is φ = 219331872.

The previous prime is 233040121. The next prime is 233040133. The reversal of 233040131 is 131040332.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233040131 is a prime.

It is a super-2 number, since 2×233040131² = 108615405312994322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 13708243 = 233040131 / (2 + 3 + 3 + 0 + 4 + 0 + 1 + 3 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233040133) 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, 6854105 + ... + 6854138.

It is an arithmetic number, because the mean of its divisors is an integer number (61687098).

Almost surely, 2^233040131 is an apocalyptic number.

233040131 is a deficient number, since it is larger than the sum of its proper divisors (13708261).

233040131 is a wasteful number, since it uses less digits than its factorization.

233040131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13708260.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 233040131 is about 15265.6520004879. The cubic root of 233040131 is about 615.3802755331.

Adding to 233040131 its reverse (131040332), we get a palindrome (364080463).

The spelling of 233040131 in words is "two hundred thirty-three million, forty thousand, one hundred thirty-one".