463398139 has 2 divisors, whose sum is σ = 463398140. Its totient is φ = 463398138.

The previous prime is 463398127. The next prime is 463398149. The reversal of 463398139 is 931893364.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-463398139 is a prime.

It is not a weakly prime, because it can be changed into another prime (463398109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 231699069 + 231699070.

It is an arithmetic number, because the mean of its divisors is an integer number (231699070).

Almost surely, 2^463398139 is an apocalyptic number.

463398139 is a deficient number, since it is larger than the sum of its proper divisors (1).

463398139 is an equidigital number, since it uses as much as digits as its factorization.

463398139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904, while the sum is 46.

The square root of 463398139 is about 21526.6843475720. The cubic root of 463398139 is about 773.8404520162.

The spelling of 463398139 in words is "four hundred sixty-three million, three hundred ninety-eight thousand, one hundred thirty-nine".