100639142 has 8 divisors (see below), whose sum is σ = 153433632. Its totient is φ = 49494600.

The previous prime is 100639129. The next prime is 100639151. The reversal of 100639142 is 241936001.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412334 + ... + 412577.

It is an arithmetic number, because the mean of its divisors is an integer number (19179204).

Almost surely, 2^100639142 is an apocalyptic number.

100639142 is a deficient number, since it is larger than the sum of its proper divisors (52794490).

100639142 is an equidigital number, since it uses as much as digits as its factorization.

100639142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824974.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 100639142 is about 10031.9061997210. The cubic root of 100639142 is about 465.1456621552.

The spelling of 100639142 in words is "one hundred million, six hundred thirty-nine thousand, one hundred forty-two".