100189639 has 8 divisors (see below), whose sum is σ = 110301840. Its totient is φ = 90244800.

The previous prime is 100189631. The next prime is 100189643. The reversal of 100189639 is 936981001.

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

It is a cyclic number.

It is not a de Polignac number, because 100189639 - 2³ = 100189631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100189598 and 100189607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100189631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40582 + ... + 42979.

It is an arithmetic number, because the mean of its divisors is an integer number (13787730).

Almost surely, 2^100189639 is an apocalyptic number.

100189639 is a deficient number, since it is larger than the sum of its proper divisors (10112201).

100189639 is a wasteful number, since it uses less digits than its factorization.

100189639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83681.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 100189639 is about 10009.4774588887. The cubic root of 100189639 is about 464.4521068389.

The spelling of 100189639 in words is "one hundred million, one hundred eighty-nine thousand, six hundred thirty-nine".