233145013 has 2 divisors, whose sum is σ = 233145014. Its totient is φ = 233145012.

The previous prime is 233144993. The next prime is 233145019. The reversal of 233145013 is 310541332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207561649 + 25583364 = 14407^2 + 5058^2 .

It is a cyclic number.

It is not a de Polignac number, because 233145013 - 2¹⁷ = 233013941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233145019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116572506 + 116572507.

It is an arithmetic number, because the mean of its divisors is an integer number (116572507).

Almost surely, 2^233145013 is an apocalyptic number.

It is an amenable number.

233145013 is a deficient number, since it is larger than the sum of its proper divisors (1).

233145013 is an equidigital number, since it uses as much as digits as its factorization.

233145013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 233145013 is about 15269.0868423753. The cubic root of 233145013 is about 615.4725809994.

Adding to 233145013 its reverse (310541332), we get a palindrome (543686345).

The spelling of 233145013 in words is "two hundred thirty-three million, one hundred forty-five thousand, thirteen".