229851 has 8 divisors (see below), whose sum is σ = 340560. Its totient is φ = 153216.

The previous prime is 229849. The next prime is 229897. The reversal of 229851 is 158922.

It is not a de Polignac number, because 229851 - 2¹ = 229849 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 8513 = 229851 / (2 + 2 + 9 + 8 + 5 + 1).

It is not an unprimeable number, because it can be changed into a prime (229841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4230 + ... + 4283.

It is an arithmetic number, because the mean of its divisors is an integer number (42570).

2²²⁹⁸⁵¹ is an apocalyptic number.

229851 is a deficient number, since it is larger than the sum of its proper divisors (110709).

229851 is an equidigital number, since it uses as much as digits as its factorization.

229851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8522 (or 8516 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 229851 is about 479.4277839258. The cubic root of 229851 is about 61.2560232866.

The spelling of 229851 in words is "two hundred twenty-nine thousand, eight hundred fifty-one".