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229971241 = 613375157

229971241 has 4 divisors (see below), whose sum is σ = 230347012. Its totient is φ = 229595472.

The previous prime is 229971239. The next prime is 229971251. The reversal of 229971241 is 142179922.

229971241 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.

It can be written as a sum of positive squares in 2 ways, for example, as 88266025 + 141705216 = 9395^2 + 11904^2 .

It is not a de Polignac number, because 229971241 - 21 = 229971239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 229971241.

It is not an unprimeable number, because it can be changed into a prime (229971251) 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, 186966 + ... + 188191.

It is an arithmetic number, because the mean of its divisors is an integer number (57586753).

It is a 612-hyperperfect number.

Almost surely, 2229971241 is an apocalyptic number.

It is an amenable number.

229971241 is a deficient number, since it is larger than the sum of its proper divisors (375771).

229971241 is an equidigital number, since it uses as much as digits as its factorization.

229971241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375770.

The product of its digits is 18144, while the sum is 37.

The square root of 229971241 is about 15164.8027023104. The cubic root of 229971241 is about 612.6670296098.

The spelling of 229971241 in words is "two hundred twenty-nine million, nine hundred seventy-one thousand, two hundred forty-one".

Divisors: 1 613 375157 229971241