4781123 has 4 divisors (see below), whose sum is σ = 4793448. Its totient is φ = 4768800.

The previous prime is 4781111. The next prime is 4781129. The reversal of 4781123 is 3211874.

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 4781123 - 2¹² = 4777027 is a prime.

It is a super-2 number, since 2×4781123² = 45718274282258, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4781092 and 4781101.

It is not an unprimeable number, because it can be changed into a prime (4781129) 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, 5561 + ... + 6362.

It is an arithmetic number, because the mean of its divisors is an integer number (1198362).

Almost surely, 2^4781123 is an apocalyptic number.

4781123 is a deficient number, since it is larger than the sum of its proper divisors (12325).

4781123 is a wasteful number, since it uses less digits than its factorization.

4781123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12324.

The product of its digits is 1344, while the sum is 26.

The square root of 4781123 is about 2186.5779199471. The cubic root of 4781123 is about 168.4651108985.

Adding to 4781123 its reverse (3211874), we get a palindrome (7992997).

The spelling of 4781123 in words is "four million, seven hundred eighty-one thousand, one hundred twenty-three".