100859459 has 4 divisors (see below), whose sum is σ = 100996680. Its totient is φ = 100722240.

The previous prime is 100859431. The next prime is 100859489. The reversal of 100859459 is 954958001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100859459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100859489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67502 + ... + 68979.

It is an arithmetic number, because the mean of its divisors is an integer number (25249170).

Almost surely, 2^100859459 is an apocalyptic number.

100859459 is a deficient number, since it is larger than the sum of its proper divisors (137221).

100859459 is an equidigital number, since it uses as much as digits as its factorization.

100859459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137220.

The product of its (nonzero) digits is 64800, while the sum is 41.

The square root of 100859459 is about 10042.8810109450. The cubic root of 100859459 is about 465.4848436562.

The spelling of 100859459 in words is "one hundred million, eight hundred fifty-nine thousand, four hundred fifty-nine".