102108379 has 4 divisors (see below), whose sum is σ = 102256840. Its totient is φ = 101959920.

The previous prime is 102108373. The next prime is 102108397. The reversal of 102108379 is 973801201.

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 102108379 - 2³ = 102108371 is a prime.

It is a super-2 number, since 2×102108379² = 20852242124015282, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102108379.

It is not an unprimeable number, because it can be changed into a prime (102108371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73194 + ... + 74575.

It is an arithmetic number, because the mean of its divisors is an integer number (25564210).

Almost surely, 2^102108379 is an apocalyptic number.

102108379 is a deficient number, since it is larger than the sum of its proper divisors (148461).

102108379 is an equidigital number, since it uses as much as digits as its factorization.

102108379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148460.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 102108379 is about 10104.8690738673. The cubic root of 102108379 is about 467.3982986756.

The spelling of 102108379 in words is "one hundred two million, one hundred eight thousand, three hundred seventy-nine".