102739000109 has 2 divisors, whose sum is σ = 102739000110. Its totient is φ = 102739000108.

The previous prime is 102739000051. The next prime is 102739000237. The reversal of 102739000109 is 901000937201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102146077609 + 592922500 = 319603^2 + 24350^2 .

It is an emirp because it is prime and its reverse (901000937201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102739000109 - 2¹² = 102738996013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102739008109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51369500054 + 51369500055.

It is an arithmetic number, because the mean of its divisors is an integer number (51369500055).

Almost surely, 2^102739000109 is an apocalyptic number.

It is an amenable number.

102739000109 is a deficient number, since it is larger than the sum of its proper divisors (1).

102739000109 is an equidigital number, since it uses as much as digits as its factorization.

102739000109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 32.

The spelling of 102739000109 in words is "one hundred two billion, seven hundred thirty-nine million, one hundred nine", and thus it is an aban number.