229148013 has 4 divisors (see below), whose sum is σ = 305530688. Its totient is φ = 152765340.

The previous prime is 229148009. The next prime is 229148021. The reversal of 229148013 is 310841922.

229148013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 229148013 - 2² = 229148009 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 (229148813) 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, 38191333 + ... + 38191338.

It is an arithmetic number, because the mean of its divisors is an integer number (76382672).

Almost surely, 2^229148013 is an apocalyptic number.

It is an amenable number.

229148013 is a deficient number, since it is larger than the sum of its proper divisors (76382675).

229148013 is an equidigital number, since it uses as much as digits as its factorization.

229148013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76382674.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 229148013 is about 15137.6356476168. The cubic root of 229148013 is about 611.9351008758.

Adding to 229148013 its reverse (310841922), we get a palindrome (539989935).

The spelling of 229148013 in words is "two hundred twenty-nine million, one hundred forty-eight thousand, thirteen".