100471081 has 4 divisors (see below), whose sum is σ = 101087632. Its totient is φ = 99854532.

The previous prime is 100471043. The next prime is 100471099. The reversal of 100471081 is 180174001.

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.

It is a cyclic number.

It is not a de Polignac number, because 100471081 - 2¹³ = 100462889 is a prime.

It is a super-2 number, since 2×100471081² = 20188876234617122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100471381) 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, 308031 + ... + 308356.

It is an arithmetic number, because the mean of its divisors is an integer number (25271908).

Almost surely, 2^100471081 is an apocalyptic number.

It is an amenable number.

100471081 is a deficient number, since it is larger than the sum of its proper divisors (616551).

100471081 is an equidigital number, since it uses as much as digits as its factorization.

100471081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616550.

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 100471081 is about 10023.5263754828. The cubic root of 100471081 is about 464.8865966182.

The spelling of 100471081 in words is "one hundred million, four hundred seventy-one thousand, eighty-one".