100300391 has 16 divisors (see below), whose sum is σ = 109626048. Its totient is φ = 91392000.

The previous prime is 100300339. The next prime is 100300399. The reversal of 100300391 is 193003001.

It is a de Polignac number, because none of the positive numbers 2^k-100300391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100300399) 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, 104771 + ... + 105723.

It is an arithmetic number, because the mean of its divisors is an integer number (6851628).

Almost surely, 2^100300391 is an apocalyptic number.

100300391 is a deficient number, since it is larger than the sum of its proper divisors (9325657).

100300391 is a wasteful number, since it uses less digits than its factorization.

100300391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 100300391 is about 10015.0082875652. The cubic root of 100300391 is about 464.6231826039.

Adding to 100300391 its reverse (193003001), we get a palindrome (293303392).

The spelling of 100300391 in words is "one hundred million, three hundred thousand, three hundred ninety-one".