102101938 has 8 divisors (see below), whose sum is σ = 153201132. Its totient is φ = 51034896.

The previous prime is 102101921. The next prime is 102101939. The reversal of 102101938 is 839101201.

It can be written as a sum of positive squares in 2 ways, for example, as 102070609 + 31329 = 10103^2 + 177^2 .

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

It is not an unprimeable number, because it can be changed into a prime (102101939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2856 + ... + 14572.

Almost surely, 2^102101938 is an apocalyptic number.

102101938 is a deficient number, since it is larger than the sum of its proper divisors (51099194).

102101938 is a wasteful number, since it uses less digits than its factorization.

102101938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16076.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 102101938 is about 10104.5503610997. The cubic root of 102101938 is about 467.3884706355.

The spelling of 102101938 in words is "one hundred two million, one hundred one thousand, nine hundred thirty-eight".