229561285 has 16 divisors (see below), whose sum is σ = 297187056. Its totient is φ = 169581568.

The previous prime is 229561273. The next prime is 229561291. The reversal of 229561285 is 582165922.

It can be written as a sum of positive squares in 8 ways, for example, as 31371201 + 198190084 = 5601^2 + 14078^2 .

It is a cyclic number.

It is not a de Polignac number, because 229561285 - 2⁵ = 229561253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20974 + ... + 29983.

It is an arithmetic number, because the mean of its divisors is an integer number (18574191).

Almost surely, 2^229561285 is an apocalyptic number.

It is an amenable number.

229561285 is a deficient number, since it is larger than the sum of its proper divisors (67625771).

229561285 is a wasteful number, since it uses less digits than its factorization.

229561285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51032.

The product of its digits is 86400, while the sum is 40.

The square root of 229561285 is about 15151.2799789325. The cubic root of 229561285 is about 612.3027580916.

The spelling of 229561285 in words is "two hundred twenty-nine million, five hundred sixty-one thousand, two hundred eighty-five".