47143205 has 4 divisors (see below), whose sum is σ = 56571852. Its totient is φ = 37714560.

The previous prime is 47143147. The next prime is 47143223. The reversal of 47143205 is 50234174.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50234174 = 2 ⋅25117087.

It can be written as a sum of positive squares in 2 ways, for example, as 15626209 + 31516996 = 3953^2 + 5614^2 .

It is not a de Polignac number, because 47143205 - 2⁶ = 47143141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4714316 + ... + 4714325.

It is an arithmetic number, because the mean of its divisors is an integer number (14142963).

Almost surely, 2^47143205 is an apocalyptic number.

It is an amenable number.

47143205 is a deficient number, since it is larger than the sum of its proper divisors (9428647).

47143205 is an equidigital number, since it uses as much as digits as its factorization.

47143205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9428646.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 47143205 is about 6866.0909548301. The cubic root of 47143205 is about 361.2487625824.

Adding to 47143205 its reverse (50234174), we get a palindrome (97377379).

The spelling of 47143205 in words is "forty-seven million, one hundred forty-three thousand, two hundred five".