229197971 has 4 divisors (see below), whose sum is σ = 229890744. Its totient is φ = 228505200.

The previous prime is 229197937. The next prime is 229197977. The reversal of 229197971 is 179791922.

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

It is a cyclic number.

It is not a de Polignac number, because 229197971 - 2⁶ = 229197907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229197977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345890 + ... + 346551.

It is an arithmetic number, because the mean of its divisors is an integer number (57472686).

Almost surely, 2^229197971 is an apocalyptic number.

229197971 is a deficient number, since it is larger than the sum of its proper divisors (692773).

229197971 is an equidigital number, since it uses as much as digits as its factorization.

229197971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692772.

The product of its digits is 142884, while the sum is 47.

The square root of 229197971 is about 15139.2856832811. The cubic root of 229197971 is about 611.9795682515.

The spelling of 229197971 in words is "two hundred twenty-nine million, one hundred ninety-seven thousand, nine hundred seventy-one".