100041391 has 2 divisors, whose sum is σ = 100041392. Its totient is φ = 100041390.

The previous prime is 100041367. The next prime is 100041419. The reversal of 100041391 is 193140001.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (193140001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100041391 - 2¹¹ = 100039343 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100041791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50020695 + 50020696.

It is an arithmetic number, because the mean of its divisors is an integer number (50020696).

Almost surely, 2^100041391 is an apocalyptic number.

100041391 is a deficient number, since it is larger than the sum of its proper divisors (1).

100041391 is an equidigital number, since it uses as much as digits as its factorization.

100041391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 100041391 is about 10002.0693358924. The cubic root of 100041391 is about 464.2229145288. Note that the first 3 decimals are identical.

Adding to 100041391 its reverse (193140001), we get a palindrome (293181392).

The spelling of 100041391 in words is "one hundred million, forty-one thousand, three hundred ninety-one".