100381869 has 16 divisors (see below), whose sum is σ = 169959040. Its totient is φ = 57360960.

The previous prime is 100381861. The next prime is 100381871. The reversal of 100381869 is 968183001.

It is not a de Polignac number, because 100381869 - 2³ = 100381861 is a prime.

It is a super-2 number, since 2×100381869² = 20153039247866322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100381861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265372 + ... + 265749.

It is an arithmetic number, because the mean of its divisors is an integer number (10622440).

Almost surely, 2^100381869 is an apocalyptic number.

It is an amenable number.

100381869 is a deficient number, since it is larger than the sum of its proper divisors (69577171).

100381869 is an equidigital number, since it uses as much as digits as its factorization.

100381869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531137 (or 531131 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 100381869 is about 10019.0752567290. The cubic root of 100381869 is about 464.7489591873.

The spelling of 100381869 in words is "one hundred million, three hundred eighty-one thousand, eight hundred sixty-nine".