100231939 has 2 divisors, whose sum is σ = 100231940. Its totient is φ = 100231938.

The previous prime is 100231919. The next prime is 100231951. The reversal of 100231939 is 939132001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100231939 - 2¹⁷ = 100100867 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (100231919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50115969 + 50115970.

It is an arithmetic number, because the mean of its divisors is an integer number (50115970).

Almost surely, 2^100231939 is an apocalyptic number.

100231939 is a deficient number, since it is larger than the sum of its proper divisors (1).

100231939 is an equidigital number, since it uses as much as digits as its factorization.

100231939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 100231939 is about 10011.5902333246. The cubic root of 100231939 is about 464.5174614340.

The spelling of 100231939 in words is "one hundred million, two hundred thirty-one thousand, nine hundred thirty-nine".