102101860 has 96 divisors (see below), whose sum is σ = 255467520. Its totient is φ = 33552768.

The previous prime is 102101851. The next prime is 102101921. The reversal of 102101860 is 68101201.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 388089 + ... + 388351.

It is an arithmetic number, because the mean of its divisors is an integer number (2661120).

Almost surely, 2^102101860 is an apocalyptic number.

102101860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102101860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127733760).

102101860 is an abundant number, since it is smaller than the sum of its proper divisors (153365660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102101860 is a wasteful number, since it uses less digits than its factorization.

102101860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 102101860 is about 10104.5465014517. The cubic root of 102101860 is about 467.3883516162.

The spelling of 102101860 in words is "one hundred two million, one hundred one thousand, eight hundred sixty".