102139327 has 4 divisors (see below), whose sum is σ = 105434176. Its totient is φ = 98844480.

The previous prime is 102139273. The next prime is 102139357. The reversal of 102139327 is 723931201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102139327 - 2¹⁵ = 102106559 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102139295 and 102139304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102139357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1647378 + ... + 1647439.

It is an arithmetic number, because the mean of its divisors is an integer number (26358544).

Almost surely, 2^102139327 is an apocalyptic number.

102139327 is a deficient number, since it is larger than the sum of its proper divisors (3294849).

102139327 is an equidigital number, since it uses as much as digits as its factorization.

102139327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3294848.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 102139327 is about 10106.4002988205. The cubic root of 102139327 is about 467.4455151122.

The spelling of 102139327 in words is "one hundred two million, one hundred thirty-nine thousand, three hundred twenty-seven".