233120257 has 4 divisors (see below), whose sum is σ = 233177940. Its totient is φ = 233062576.

The previous prime is 233120207. The next prime is 233120267. The reversal of 233120257 is 752021332.

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 101123136 + 131997121 = 10056^2 + 11489^2 .

It is a cyclic number.

It is not a de Polignac number, because 233120257 - 2¹⁹ = 232595969 is a prime.

It is a super-3 number, since 3×233120257³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233120207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22282 + ... + 31027.

It is an arithmetic number, because the mean of its divisors is an integer number (58294485).

Almost surely, 2^233120257 is an apocalyptic number.

It is an amenable number.

233120257 is a deficient number, since it is larger than the sum of its proper divisors (57683).

233120257 is an equidigital number, since it uses as much as digits as its factorization.

233120257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57682.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 233120257 is about 15268.2761633395. The cubic root of 233120257 is about 615.4507960191.

Adding to 233120257 its reverse (752021332), we get a palindrome (985141589).

The spelling of 233120257 in words is "two hundred thirty-three million, one hundred twenty thousand, two hundred fifty-seven".