229145965 has 16 divisors (see below), whose sum is σ = 284993280. Its totient is φ = 176662080.

The previous prime is 229145953. The next prime is 229145989. The reversal of 229145965 is 569541922.

It is not a de Polignac number, because 229145965 - 2⁷ = 229145837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99052 + ... + 101338.

It is an arithmetic number, because the mean of its divisors is an integer number (17812080).

Almost surely, 2^229145965 is an apocalyptic number.

It is an amenable number.

229145965 is a deficient number, since it is larger than the sum of its proper divisors (55847315).

229145965 is a wasteful number, since it uses less digits than its factorization.

229145965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3012.

The product of its digits is 194400, while the sum is 43.

The square root of 229145965 is about 15137.5680014988. The cubic root of 229145965 is about 611.9332778229.

The spelling of 229145965 in words is "two hundred twenty-nine million, one hundred forty-five thousand, nine hundred sixty-five".