4780123 has 4 divisors (see below), whose sum is σ = 4870368. Its totient is φ = 4689880.

The previous prime is 4780117. The next prime is 4780133. The reversal of 4780123 is 3210874.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4780123 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4780133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45043 + ... + 45148.

It is an arithmetic number, because the mean of its divisors is an integer number (1217592).

Almost surely, 2^4780123 is an apocalyptic number.

4780123 is a deficient number, since it is larger than the sum of its proper divisors (90245).

4780123 is an equidigital number, since it uses as much as digits as its factorization.

4780123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90244.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 4780123 is about 2186.3492401718. The cubic root of 4780123 is about 168.4533649232.

Adding to 4780123 its reverse (3210874), we get a palindrome (7990997).

The spelling of 4780123 in words is "four million, seven hundred eighty thousand, one hundred twenty-three".