100497811 has 4 divisors (see below), whose sum is σ = 101708712. Its totient is φ = 99286912.

The previous prime is 100497791. The next prime is 100497841. The reversal of 100497811 is 118794001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 118794001 = 1019 ⋅116579.

It is a cyclic number.

It is not a de Polignac number, because 100497811 - 2²⁵ = 66943379 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100497841) 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, 605326 + ... + 605491.

It is an arithmetic number, because the mean of its divisors is an integer number (25427178).

Almost surely, 2^100497811 is an apocalyptic number.

100497811 is a deficient number, since it is larger than the sum of its proper divisors (1210901).

100497811 is an equidigital number, since it uses as much as digits as its factorization.

100497811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210900.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 100497811 is about 10024.8596498904. The cubic root of 100497811 is about 464.9278201449.

The spelling of 100497811 in words is "one hundred million, four hundred ninety-seven thousand, eight hundred eleven".