100907047 has 4 divisors (see below), whose sum is σ = 100932160. Its totient is φ = 100881936.

The previous prime is 100907041. The next prime is 100907069. The reversal of 100907047 is 740709001.

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

It is a 4-Lehmer number, since φ(100907047) divides (100907047-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 100907047 - 2³ = 100907039 is a prime.

It is a deceptive number, since it divides R_100907046.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100907041) 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, 5022 + ... + 15067.

It is an arithmetic number, because the mean of its divisors is an integer number (25233040).

It is a Poulet number, since it divides 2^100907046-1.

Almost surely, 2^100907047 is an apocalyptic number.

100907047 is the 5023-rd decagonal number.

100907047 is a deficient number, since it is larger than the sum of its proper divisors (25113).

100907047 is an equidigital number, since it uses as much as digits as its factorization.

100907047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25112.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 100907047 is about 10045.2499720017. The cubic root of 100907047 is about 465.5580412521.

The spelling of 100907047 in words is "one hundred million, nine hundred seven thousand, forty-seven".