100025839 has 2 divisors, whose sum is σ = 100025840. Its totient is φ = 100025838.

The previous prime is 100025833. The next prime is 100025879. The reversal of 100025839 is 938520001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100025839 - 2¹⁵ = 99993071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100025833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50012919 + 50012920.

It is an arithmetic number, because the mean of its divisors is an integer number (50012920).

Almost surely, 2^100025839 is an apocalyptic number.

100025839 is a deficient number, since it is larger than the sum of its proper divisors (1).

100025839 is an equidigital number, since it uses as much as digits as its factorization.

100025839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 100025839 is about 10001.2918665540. The cubic root of 100025839 is about 464.1988579231.

The spelling of 100025839 in words is "one hundred million, twenty-five thousand, eight hundred thirty-nine".