228729559 has 2 divisors, whose sum is σ = 228729560. Its totient is φ = 228729558.

The previous prime is 228729533. The next prime is 228729593. The reversal of 228729559 is 955927822.

228729559 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228729559 - 2⁹ = 228729047 is a prime.

It is a super-2 number, since 2×228729559² = 104634422320668962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228729859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114364779 + 114364780.

It is an arithmetic number, because the mean of its divisors is an integer number (114364780).

Almost surely, 2^228729559 is an apocalyptic number.

228729559 is a deficient number, since it is larger than the sum of its proper divisors (1).

228729559 is an equidigital number, since it uses as much as digits as its factorization.

228729559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 907200, while the sum is 49.

The square root of 228729559 is about 15123.8076885419. The cubic root of 228729559 is about 611.5623829455.

The spelling of 228729559 in words is "two hundred twenty-eight million, seven hundred twenty-nine thousand, five hundred fifty-nine".