399229000139 has 2 divisors, whose sum is σ = 399229000140. Its totient is φ = 399229000138.

The previous prime is 399229000109. The next prime is 399229000147. The reversal of 399229000139 is 931000922993.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 399229000139 - 2¹² = 399228996043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 399229000093 and 399229000102.

It is not a weakly prime, because it can be changed into another prime (399229000109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199614500069 + 199614500070.

It is an arithmetic number, because the mean of its divisors is an integer number (199614500070).

Almost surely, 2^399229000139 is an apocalyptic number.

399229000139 is a deficient number, since it is larger than the sum of its proper divisors (1).

399229000139 is an equidigital number, since it uses as much as digits as its factorization.

399229000139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 236196, while the sum is 47.

The spelling of 399229000139 in words is "three hundred ninety-nine billion, two hundred twenty-nine million, one hundred thirty-nine", and thus it is an aban number.