101020859 has 8 divisors (see below), whose sum is σ = 102619872. Its totient is φ = 99426880.

The previous prime is 101020849. The next prime is 101020861. The reversal of 101020859 is 958020101.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101020859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101020849) 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, 66917 + ... + 68409.

It is an arithmetic number, because the mean of its divisors is an integer number (12827484).

Almost surely, 2^101020859 is an apocalyptic number.

101020859 is a deficient number, since it is larger than the sum of its proper divisors (1599013).

101020859 is an equidigital number, since it uses as much as digits as its factorization.

101020859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2517.

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

The square root of 101020859 is about 10050.9133415824. The cubic root of 101020859 is about 465.7330081648.

The spelling of 101020859 in words is "one hundred one million, twenty thousand, eight hundred fifty-nine".