229656605 has 4 divisors (see below), whose sum is σ = 275587932. Its totient is φ = 183725280.

The previous prime is 229656577. The next prime is 229656607. The reversal of 229656605 is 506656922.

229656605 = T₉₅₈₂ + T₉₅₈₃ + ... + T₉₅₈₆.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26822041 + 202834564 = 5179^2 + 14242^2 .

It is not a de Polignac number, because 229656605 - 2¹⁰ = 229655581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229656607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22965656 + ... + 22965665.

It is an arithmetic number, because the mean of its divisors is an integer number (68896983).

Almost surely, 2^229656605 is an apocalyptic number.

It is an amenable number.

229656605 is a deficient number, since it is larger than the sum of its proper divisors (45931327).

229656605 is an equidigital number, since it uses as much as digits as its factorization.

229656605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45931326.

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 229656605 is about 15154.4252612892. The cubic root of 229656605 is about 612.3874945380.

The spelling of 229656605 in words is "two hundred twenty-nine million, six hundred fifty-six thousand, six hundred five".