100485971 has 4 divisors (see below), whose sum is σ = 102133344. Its totient is φ = 98838600.

The previous prime is 100485967. The next prime is 100485991. The reversal of 100485971 is 179584001.

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

It is a cyclic number.

It is not a de Polignac number, because 100485971 - 2² = 100485967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100485941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 823595 + ... + 823716.

It is an arithmetic number, because the mean of its divisors is an integer number (25533336).

Almost surely, 2^100485971 is an apocalyptic number.

100485971 is a deficient number, since it is larger than the sum of its proper divisors (1647373).

100485971 is an equidigital number, since it uses as much as digits as its factorization.

100485971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647372.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 100485971 is about 10024.2691005380. The cubic root of 100485971 is about 464.9095611682.

The spelling of 100485971 in words is "one hundred million, four hundred eighty-five thousand, nine hundred seventy-one".