100943939 has 2 divisors, whose sum is σ = 100943940. Its totient is φ = 100943938.

The previous prime is 100943933. The next prime is 100943951. The reversal of 100943939 is 939349001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100943939 - 2¹² = 100939843 is a prime.

It is not a weakly prime, because it can be changed into another prime (100943933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50471969 + 50471970.

It is an arithmetic number, because the mean of its divisors is an integer number (50471970).

Almost surely, 2^100943939 is an apocalyptic number.

100943939 is a deficient number, since it is larger than the sum of its proper divisors (1).

100943939 is an equidigital number, since it uses as much as digits as its factorization.

100943939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 100943939 is about 10047.0860949830. The cubic root of 100943939 is about 465.6147709357.

The spelling of 100943939 in words is "one hundred million, nine hundred forty-three thousand, nine hundred thirty-nine".