100106387 has 4 divisors (see below), whose sum is σ = 105995016. Its totient is φ = 94217760.

The previous prime is 100106371. The next prime is 100106441. The reversal of 100106387 is 783601001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 783601001 = 571 ⋅1372331.

It is a cyclic number.

It is not a de Polignac number, because 100106387 - 2⁴ = 100106371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100106317) 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, 2944289 + ... + 2944322.

It is an arithmetic number, because the mean of its divisors is an integer number (26498754).

Almost surely, 2^100106387 is an apocalyptic number.

100106387 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

100106387 is a deficient number, since it is larger than the sum of its proper divisors (5888629).

100106387 is an equidigital number, since it uses as much as digits as its factorization.

100106387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5888628.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 100106387 is about 10005.3179359778. The cubic root of 100106387 is about 464.3234265946.

Adding to 100106387 its reverse (783601001), we get a palindrome (883707388).

The spelling of 100106387 in words is "one hundred million, one hundred six thousand, three hundred eighty-seven".