233142281 has 8 divisors (see below), whose sum is σ = 241680000. Its totient is φ = 224637840.

The previous prime is 233142257. The next prime is 233142311. The reversal of 233142281 is 182241332.

233142281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233142281 is a prime.

It is a super-2 number, since 2×233142281² = 108710646379765922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 233142281.

It is not an unprimeable number, because it can be changed into a prime (233148281) 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, 6416 + ... + 22526.

It is an arithmetic number, because the mean of its divisors is an integer number (30210000).

Almost surely, 2^233142281 is an apocalyptic number.

It is an amenable number.

233142281 is a deficient number, since it is larger than the sum of its proper divisors (8537719).

233142281 is a wasteful number, since it uses less digits than its factorization.

233142281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16639.

The product of its digits is 2304, while the sum is 26.

The square root of 233142281 is about 15268.9973803128. The cubic root of 233142281 is about 615.4701769481.

The spelling of 233142281 in words is "two hundred thirty-three million, one hundred forty-two thousand, two hundred eighty-one".