100875391 has 2 divisors, whose sum is σ = 100875392. Its totient is φ = 100875390.

The previous prime is 100875373. The next prime is 100875413. The reversal of 100875391 is 193578001.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (193578001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100875391 is a prime.

It is equal to p_5808832 and since 100875391 and 5808832 have the same sum of digits, it is a Honaker prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100875791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50437695 + 50437696.

It is an arithmetic number, because the mean of its divisors is an integer number (50437696).

Almost surely, 2^100875391 is an apocalyptic number.

100875391 is a deficient number, since it is larger than the sum of its proper divisors (1).

100875391 is an equidigital number, since it uses as much as digits as its factorization.

100875391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 100875391 is about 10043.6741783075. The cubic root of 100875391 is about 465.5093520634.

The spelling of 100875391 in words is "one hundred million, eight hundred seventy-five thousand, three hundred ninety-one".