233285131 has 2 divisors, whose sum is σ = 233285132. Its totient is φ = 233285130.

The previous prime is 233285099. The next prime is 233285141. The reversal of 233285131 is 131582332.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 233285131 - 2⁵ = 233285099 is a prime.

It is a super-2 number, since 2×233285131² = 108843904691374322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 233285131.

It is not a weakly prime, because it can be changed into another prime (233285141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116642565 + 116642566.

It is an arithmetic number, because the mean of its divisors is an integer number (116642566).

Almost surely, 2^233285131 is an apocalyptic number.

233285131 is a deficient number, since it is larger than the sum of its proper divisors (1).

233285131 is an equidigital number, since it uses as much as digits as its factorization.

233285131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 28.

The square root of 233285131 is about 15273.6744433028. The cubic root of 233285131 is about 615.5958540867.

The spelling of 233285131 in words is "two hundred thirty-three million, two hundred eighty-five thousand, one hundred thirty-one".