481372139 has 2 divisors, whose sum is σ = 481372140. Its totient is φ = 481372138.

The previous prime is 481372127. The next prime is 481372193. The reversal of 481372139 is 931273184.

Together with next prime (481372193) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-481372139 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (481372039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240686069 + 240686070.

It is an arithmetic number, because the mean of its divisors is an integer number (240686070).

Almost surely, 2^481372139 is an apocalyptic number.

481372139 is a deficient number, since it is larger than the sum of its proper divisors (1).

481372139 is an equidigital number, since it uses as much as digits as its factorization.

481372139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 481372139 is about 21940.1945980431. The cubic root of 481372139 is about 783.7188938016.

The spelling of 481372139 in words is "four hundred eighty-one million, three hundred seventy-two thousand, one hundred thirty-nine".