481391123 has 4 divisors (see below), whose sum is σ = 481435248. Its totient is φ = 481347000.

The previous prime is 481391111. The next prime is 481391129. The reversal of 481391123 is 321193184.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 481391123 - 2⁴ = 481391107 is a prime.

It is a super-2 number, since 2×481391123² = 463474826606402258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 481391123.

It is not an unprimeable number, because it can be changed into a prime (481391129) 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, 7565 + ... + 31937.

It is an arithmetic number, because the mean of its divisors is an integer number (120358812).

Almost surely, 2^481391123 is an apocalyptic number.

481391123 is a deficient number, since it is larger than the sum of its proper divisors (44125).

481391123 is a wasteful number, since it uses less digits than its factorization.

481391123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44124.

The product of its digits is 5184, while the sum is 32.

The square root of 481391123 is about 21940.6272243981. The cubic root of 481391123 is about 783.7291962424.

The spelling of 481391123 in words is "four hundred eighty-one million, three hundred ninety-one thousand, one hundred twenty-three".