100859497 has 4 divisors (see below), whose sum is σ = 102569040. Its totient is φ = 99149956.

The previous prime is 100859491. The next prime is 100859527. The reversal of 100859497 is 794958001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 794958001 = 4253 ⋅186917.

It is a cyclic number.

It is not a de Polignac number, because 100859497 - 2³ = 100859489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100859491) 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, 854683 + ... + 854800.

It is an arithmetic number, because the mean of its divisors is an integer number (25642260).

Almost surely, 2^100859497 is an apocalyptic number.

It is an amenable number.

100859497 is a deficient number, since it is larger than the sum of its proper divisors (1709543).

100859497 is an equidigital number, since it uses as much as digits as its factorization.

100859497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709542.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 100859497 is about 10042.8829028322. The cubic root of 100859497 is about 465.4849021152.

The spelling of 100859497 in words is "one hundred million, eight hundred fifty-nine thousand, four hundred ninety-seven".