481809123 has 12 divisors (see below), whose sum is σ = 702452088. Its totient is φ = 318203520.

The previous prime is 481809101. The next prime is 481809169. The reversal of 481809123 is 321908184.

It is not a de Polignac number, because 481809123 - 2¹³ = 481800931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (481809193) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 249198 + ... + 251123.

It is an arithmetic number, because the mean of its divisors is an integer number (58537674).

Almost surely, 2^481809123 is an apocalyptic number.

481809123 is a deficient number, since it is larger than the sum of its proper divisors (220642965).

481809123 is a wasteful number, since it uses less digits than its factorization.

481809123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500434 (or 500431 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 481809123 is about 21950.1508650852. The cubic root of 481809123 is about 783.9559723601.

The spelling of 481809123 in words is "four hundred eighty-one million, eight hundred nine thousand, one hundred twenty-three".