102100000139 has 2 divisors, whose sum is σ = 102100000140. Its totient is φ = 102100000138.

The previous prime is 102100000127. The next prime is 102100000153. The reversal of 102100000139 is 931000001201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102100000139 - 2²⁸ = 101831564683 is a prime.

It is not a weakly prime, because it can be changed into another prime (102100000339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51050000069 + 51050000070.

It is an arithmetic number, because the mean of its divisors is an integer number (51050000070).

Almost surely, 2^102100000139 is an apocalyptic number.

102100000139 is a deficient number, since it is larger than the sum of its proper divisors (1).

102100000139 is an equidigital number, since it uses as much as digits as its factorization.

102100000139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 17.

The spelling of 102100000139 in words is "one hundred two billion, one hundred million, one hundred thirty-nine", and thus it is an aban number.