233045389 has 2 divisors, whose sum is σ = 233045390. Its totient is φ = 233045388.

The previous prime is 233045303. The next prime is 233045443. The reversal of 233045389 is 983540332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197880489 + 35164900 = 14067^2 + 5930^2 .

It is a cyclic number.

It is not a de Polignac number, because 233045389 - 2⁷ = 233045261 is a prime.

It is a super-2 number, since 2×233045389² = 108620306668322642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233045489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116522694 + 116522695.

It is an arithmetic number, because the mean of its divisors is an integer number (116522695).

Almost surely, 2^233045389 is an apocalyptic number.

It is an amenable number.

233045389 is a deficient number, since it is larger than the sum of its proper divisors (1).

233045389 is an equidigital number, since it uses as much as digits as its factorization.

233045389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 233045389 is about 15265.8242162027. The cubic root of 233045389 is about 615.3849036990.

The spelling of 233045389 in words is "two hundred thirty-three million, forty-five thousand, three hundred eighty-nine".