4781143 has 8 divisors (see below), whose sum is σ = 4993200. Its totient is φ = 4572288.

The previous prime is 4781137. The next prime is 4781167. The reversal of 4781143 is 3411874.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4781143 - 2⁵ = 4781111 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4781173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2548 + ... + 4006.

It is an arithmetic number, because the mean of its divisors is an integer number (624150).

Almost surely, 2^4781143 is an apocalyptic number.

4781143 is a deficient number, since it is larger than the sum of its proper divisors (212057).

4781143 is a wasteful number, since it uses less digits than its factorization.

4781143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601.

The product of its digits is 2688, while the sum is 28.

The square root of 4781143 is about 2186.5824932986. The cubic root of 4781143 is about 168.4653458013.

The spelling of 4781143 in words is "four million, seven hundred eighty-one thousand, one hundred forty-three".