100023139 has 2 divisors, whose sum is σ = 100023140. Its totient is φ = 100023138.

The previous prime is 100023127. The next prime is 100023221. The reversal of 100023139 is 931320001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100023139 - 2¹¹ = 100021091 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (100023109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50011569 + 50011570.

It is an arithmetic number, because the mean of its divisors is an integer number (50011570).

Almost surely, 2^100023139 is an apocalyptic number.

100023139 is a deficient number, since it is larger than the sum of its proper divisors (1).

100023139 is an equidigital number, since it uses as much as digits as its factorization.

100023139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 100023139 is about 10001.1568830811. The cubic root of 100023139 is about 464.1946811750.

The spelling of 100023139 in words is "one hundred million, twenty-three thousand, one hundred thirty-nine".