101939210 has 8 divisors (see below), whose sum is σ = 183490596. Its totient is φ = 40775680.

The previous prime is 101939209. The next prime is 101939239. The reversal of 101939210 is 12939101.

It can be written as a sum of positive squares in 2 ways, for example, as 97199881 + 4739329 = 9859^2 + 2177^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 101939210.

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 3 ways as a sum of consecutive naturals, for example, 5096951 + ... + 5096970.

Almost surely, 2^101939210 is an apocalyptic number.

101939210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101939210 is a deficient number, since it is larger than the sum of its proper divisors (81551386).

101939210 is a wasteful number, since it uses less digits than its factorization.

101939210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10193928.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 101939210 is about 10096.4949363628. The cubic root of 101939210 is about 467.1400338461.

The spelling of 101939210 in words is "one hundred one million, nine hundred thirty-nine thousand, two hundred ten".