102119985 has 24 divisors (see below), whose sum is σ = 193100544. Its totient is φ = 49512480.

The previous prime is 102119959. The next prime is 102119987. The reversal of 102119985 is 589911201.

It is not a de Polignac number, because 102119985 - 2⁸ = 102119729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102119987) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102657 + ... + 103646.

It is an arithmetic number, because the mean of its divisors is an integer number (8045856).

Almost surely, 2^102119985 is an apocalyptic number.

102119985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102119985 is a deficient number, since it is larger than the sum of its proper divisors (90980559).

102119985 is a wasteful number, since it uses less digits than its factorization.

102119985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206325 (or 206322 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 36.

The square root of 102119985 is about 10105.4433351536. The cubic root of 102119985 is about 467.4160067201.

The spelling of 102119985 in words is "one hundred two million, one hundred nineteen thousand, nine hundred eighty-five".