229143915 has 96 divisors (see below), whose sum is σ = 533385216. Its totient is φ = 87886080.

The previous prime is 229143911. The next prime is 229143919. The reversal of 229143915 is 519341922.

It is an interprime number because it is at equal distance from previous prime (229143911) and next prime (229143919).

It is not a de Polignac number, because 229143915 - 2² = 229143911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 229143915.

It is not an unprimeable number, because it can be changed into a prime (229143911) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 42502 + ... + 47588.

It is an arithmetic number, because the mean of its divisors is an integer number (5556096).

Almost surely, 2^229143915 is an apocalyptic number.

229143915 is an abundant number, since it is smaller than the sum of its proper divisors (304241301).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

229143915 is a wasteful number, since it uses less digits than its factorization.

229143915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5129 (or 5126 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 229143915 is about 15137.5002890173. The cubic root of 229143915 is about 611.9314529788.

The spelling of 229143915 in words is "two hundred twenty-nine million, one hundred forty-three thousand, nine hundred fifteen".