229087109 has 4 divisors (see below), whose sum is σ = 232313760. Its totient is φ = 225860460.

The previous prime is 229087099. The next prime is 229087127. The reversal of 229087109 is 901780922.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 229087109 - 2⁸ = 229086853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229087139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1613219 + ... + 1613360.

It is an arithmetic number, because the mean of its divisors is an integer number (58078440).

Almost surely, 2^229087109 is an apocalyptic number.

It is an amenable number.

229087109 is a deficient number, since it is larger than the sum of its proper divisors (3226651).

229087109 is an equidigital number, since it uses as much as digits as its factorization.

229087109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3226650.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 229087109 is about 15135.6238391419. The cubic root of 229087109 is about 611.8808817748.

The spelling of 229087109 in words is "two hundred twenty-nine million, eighty-seven thousand, one hundred nine".