233242145 has 4 divisors (see below), whose sum is σ = 279890580. Its totient is φ = 186593712.

The previous prime is 233242111. The next prime is 233242169. The reversal of 233242145 is 541242332.

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

It can be written as a sum of positive squares in 2 ways, for example, as 78712384 + 154529761 = 8872^2 + 12431^2 .

It is a cyclic number.

It is not a de Polignac number, because 233242145 - 2⁸ = 233241889 is a prime.

It is a super-4 number, since 4×233242145⁴ (a number of 35 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23324210 + ... + 23324219.

It is an arithmetic number, because the mean of its divisors is an integer number (69972645).

Almost surely, 2^233242145 is an apocalyptic number.

It is an amenable number.

233242145 is a deficient number, since it is larger than the sum of its proper divisors (46648435).

233242145 is an equidigital number, since it uses as much as digits as its factorization.

233242145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46648434.

The product of its digits is 5760, while the sum is 26.

The square root of 233242145 is about 15272.2671859813. The cubic root of 233242145 is about 615.5580410911.

Adding to 233242145 its reverse (541242332), we get a palindrome (774484477).

The spelling of 233242145 in words is "two hundred thirty-three million, two hundred forty-two thousand, one hundred forty-five".