233406109 has 2 divisors, whose sum is σ = 233406110. Its totient is φ = 233406108.

The previous prime is 233406097. The next prime is 233406157. The reversal of 233406109 is 901604332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223502500 + 9903609 = 14950^2 + 3147^2 .

It is a cyclic number.

It is not a de Polignac number, because 233406109 - 2⁵ = 233406077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233400109) 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, 116703054 + 116703055.

It is an arithmetic number, because the mean of its divisors is an integer number (116703055).

Almost surely, 2^233406109 is an apocalyptic number.

It is an amenable number.

233406109 is a deficient number, since it is larger than the sum of its proper divisors (1).

233406109 is an equidigital number, since it uses as much as digits as its factorization.

233406109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 233406109 is about 15277.6342736695. The cubic root of 233406109 is about 615.7022484734.

The spelling of 233406109 in words is "two hundred thirty-three million, four hundred six thousand, one hundred nine".