229435813 has 2 divisors, whose sum is σ = 229435814. Its totient is φ = 229435812.

The previous prime is 229435807. The next prime is 229435819. The reversal of 229435813 is 318534922.

It is a balanced prime because it is at equal distance from previous prime (229435807) and next prime (229435819).

It can be written as a sum of positive squares in only one way, i.e., 181521729 + 47914084 = 13473^2 + 6922^2 .

It is a cyclic number.

It is not a de Polignac number, because 229435813 - 2⁹ = 229435301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229435819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114717906 + 114717907.

It is an arithmetic number, because the mean of its divisors is an integer number (114717907).

Almost surely, 2^229435813 is an apocalyptic number.

It is an amenable number.

229435813 is a deficient number, since it is larger than the sum of its proper divisors (1).

229435813 is an equidigital number, since it uses as much as digits as its factorization.

229435813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 37.

The square root of 229435813 is about 15147.1387727188. The cubic root of 229435813 is about 612.1911817093.

The spelling of 229435813 in words is "two hundred twenty-nine million, four hundred thirty-five thousand, eight hundred thirteen".