100102859 has 4 divisors (see below), whose sum is σ = 100126800. Its totient is φ = 100078920.

The previous prime is 100102841. The next prime is 100102901. The reversal of 100102859 is 958201001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 958201001 = 16703 ⋅57367.

It is a cyclic number.

It is not a de Polignac number, because 100102859 - 2⁸ = 100102603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100102259) 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, 3872 + ... + 14669.

It is an arithmetic number, because the mean of its divisors is an integer number (25031700).

Almost surely, 2^100102859 is an apocalyptic number.

100102859 is a deficient number, since it is larger than the sum of its proper divisors (23941).

100102859 is an equidigital number, since it uses as much as digits as its factorization.

100102859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23940.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 100102859 is about 10005.1416281830. The cubic root of 100102859 is about 464.3179718901.

The spelling of 100102859 in words is "one hundred million, one hundred two thousand, eight hundred fifty-nine".