101868210 has 24 divisors (see below), whose sum is σ = 264857580. Its totient is φ = 27164832.

The previous prime is 101868197. The next prime is 101868241. The reversal of 101868210 is 12868101.

It can be written as a sum of positive squares in 2 ways, for example, as 100821681 + 1046529 = 10041^2 + 1023^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 565845 + ... + 566024.

Almost surely, 2^101868210 is an apocalyptic number.

101868210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101868210 is an abundant number, since it is smaller than the sum of its proper divisors (162989370).

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

101868210 is a wasteful number, since it uses less digits than its factorization.

101868210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131882 (or 1131879 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 101868210 is about 10092.9782522306. The cubic root of 101868210 is about 467.0315553206.

The spelling of 101868210 in words is "one hundred one million, eight hundred sixty-eight thousand, two hundred ten".