205433147 has 4 divisors (see below), whose sum is σ = 205748400. Its totient is φ = 205117896.

The previous prime is 205433143. The next prime is 205433159. The reversal of 205433147 is 741334502.

It is a happy number.

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 205433147 - 2² = 205433143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205433143) 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, 156647 + ... + 157952.

It is an arithmetic number, because the mean of its divisors is an integer number (51437100).

Almost surely, 2^205433147 is an apocalyptic number.

205433147 is a deficient number, since it is larger than the sum of its proper divisors (315253).

205433147 is an equidigital number, since it uses as much as digits as its factorization.

205433147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315252.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 205433147 is about 14332.9392310161. The cubic root of 205433147 is about 590.0518454871.

Adding to 205433147 its reverse (741334502), we get a palindrome (946767649).

The spelling of 205433147 in words is "two hundred five million, four hundred thirty-three thousand, one hundred forty-seven".