229107661 has 4 divisors (see below), whose sum is σ = 229637212. Its totient is φ = 228578112.

The previous prime is 229107647. The next prime is 229107667. The reversal of 229107661 is 166701922.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 109620900 + 119486761 = 10470^2 + 10931^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-229107661 is a prime.

It is a super-3 number, since 3×229107661³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229107667) 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 in 3 ways as a sum of consecutive naturals, for example, 264126 + ... + 264991.

It is an arithmetic number, because the mean of its divisors is an integer number (57409303).

Almost surely, 2^229107661 is an apocalyptic number.

It is an amenable number.

229107661 is a deficient number, since it is larger than the sum of its proper divisors (529551).

229107661 is an equidigital number, since it uses as much as digits as its factorization.

229107661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529550.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 229107661 is about 15136.3027519933. The cubic root of 229107661 is about 611.8991790358.

The spelling of 229107661 in words is "two hundred twenty-nine million, one hundred seven thousand, six hundred sixty-one".