233420413 has 2 divisors, whose sum is σ = 233420414. Its totient is φ = 233420412.

The previous prime is 233420357. The next prime is 233420417. The reversal of 233420413 is 314024332.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218389284 + 15031129 = 14778^2 + 3877^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233420413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233420417) 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, 116710206 + 116710207.

It is an arithmetic number, because the mean of its divisors is an integer number (116710207).

Almost surely, 2^233420413 is an apocalyptic number.

It is an amenable number.

233420413 is a deficient number, since it is larger than the sum of its proper divisors (1).

233420413 is an equidigital number, since it uses as much as digits as its factorization.

233420413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 233420413 is about 15278.1024018037. The cubic root of 233420413 is about 615.7148257293.

Adding to 233420413 its reverse (314024332), we get a palindrome (547444745).

The spelling of 233420413 in words is "two hundred thirty-three million, four hundred twenty thousand, four hundred thirteen".