229885155 has 48 divisors (see below), whose sum is σ = 419309280. Its totient is φ = 119496960.

The previous prime is 229885153. The next prime is 229885157. The reversal of 229885155 is 551588922.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (229885153) and next prime (229885157).

It is not a de Polignac number, because 229885155 - 2¹ = 229885153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 229885155.

It is not an unprimeable number, because it can be changed into a prime (229885153) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 226429 + ... + 227441.

It is an arithmetic number, because the mean of its divisors is an integer number (8735610).

Almost surely, 2^229885155 is an apocalyptic number.

229885155 is a deficient number, since it is larger than the sum of its proper divisors (189424125).

229885155 is a wasteful number, since it uses less digits than its factorization.

229885155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109 (or 1062 counting only the distinct ones).

The product of its digits is 288000, while the sum is 45.

The square root of 229885155 is about 15161.9640878087. The cubic root of 229885155 is about 612.5905727507.

The spelling of 229885155 in words is "two hundred twenty-nine million, eight hundred eighty-five thousand, one hundred fifty-five".