481404139 has 2 divisors, whose sum is σ = 481404140. Its totient is φ = 481404138.

The previous prime is 481404107. The next prime is 481404173. The reversal of 481404139 is 931404184.

It is an a-pointer prime, because the next prime (481404173) can be obtained adding 481404139 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 481404139 - 2⁵ = 481404107 is a prime.

It is not a weakly prime, because it can be changed into another prime (481404439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240702069 + 240702070.

It is an arithmetic number, because the mean of its divisors is an integer number (240702070).

Almost surely, 2^481404139 is an apocalyptic number.

481404139 is a deficient number, since it is larger than the sum of its proper divisors (1).

481404139 is an equidigital number, since it uses as much as digits as its factorization.

481404139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 481404139 is about 21940.9238410783. The cubic root of 481404139 is about 783.7362597484.

The spelling of 481404139 in words is "four hundred eighty-one million, four hundred four thousand, one hundred thirty-nine".