229209213 has 4 divisors (see below), whose sum is σ = 305612288. Its totient is φ = 152806140.

The previous prime is 229209203. The next prime is 229209223. The reversal of 229209213 is 312902922.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (229209203) and next prime (229209223).

It is not a de Polignac number, because 229209213 - 2⁸ = 229208957 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 (229209203) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 38201533 + ... + 38201538.

It is an arithmetic number, because the mean of its divisors is an integer number (76403072).

Almost surely, 2^229209213 is an apocalyptic number.

It is an amenable number.

229209213 is a deficient number, since it is larger than the sum of its proper divisors (76403075).

229209213 is an equidigital number, since it uses as much as digits as its factorization.

229209213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76403074.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 229209213 is about 15139.6569644097. The cubic root of 229209213 is about 611.9895738110.

The spelling of 229209213 in words is "two hundred twenty-nine million, two hundred nine thousand, two hundred thirteen".