102075999 has 12 divisors (see below), whose sum is σ = 143643096. Its totient is φ = 64468368.

The previous prime is 102075971. The next prime is 102076021. The reversal of 102075999 is 999570201.

It is not a de Polignac number, because 102075999 - 2²⁵ = 68521567 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102075999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102075899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46044 + ... + 48209.

It is an arithmetic number, because the mean of its divisors is an integer number (11970258).

Almost surely, 2^102075999 is an apocalyptic number.

102075999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

102075999 is a deficient number, since it is larger than the sum of its proper divisors (41567097).

102075999 is an equidigital number, since it uses as much as digits as its factorization.

102075999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94294 (or 94275 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 42.

The square root of 102075999 is about 10103.2667489283. The cubic root of 102075999 is about 467.3488872655.

The spelling of 102075999 in words is "one hundred two million, seventy-five thousand, nine hundred ninety-nine".