233245381 has 2 divisors, whose sum is σ = 233245382. Its totient is φ = 233245380.

The previous prime is 233245307. The next prime is 233245403. The reversal of 233245381 is 183542332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143640225 + 89605156 = 11985^2 + 9466^2 .

It is a cyclic number.

It is not a de Polignac number, because 233245381 - 2¹¹ = 233243333 is a prime.

It is a super-2 number, since 2×233245381² = 108806815515670322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233245301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116622690 + 116622691.

It is an arithmetic number, because the mean of its divisors is an integer number (116622691).

Almost surely, 2^233245381 is an apocalyptic number.

It is an amenable number.

233245381 is a deficient number, since it is larger than the sum of its proper divisors (1).

233245381 is an equidigital number, since it uses as much as digits as its factorization.

233245381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 31.

The square root of 233245381 is about 15272.3731292815. The cubic root of 233245381 is about 615.5608878273.

The spelling of 233245381 in words is "two hundred thirty-three million, two hundred forty-five thousand, three hundred eighty-one".