101530939 has 2 divisors, whose sum is σ = 101530940. Its totient is φ = 101530938.

The previous prime is 101530843. The next prime is 101530981. The reversal of 101530939 is 939035101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101530939 - 2⁹ = 101530427 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101530939.

It is not a weakly prime, because it can be changed into another prime (101530999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50765469 + 50765470.

It is an arithmetic number, because the mean of its divisors is an integer number (50765470).

Almost surely, 2^101530939 is an apocalyptic number.

101530939 is a deficient number, since it is larger than the sum of its proper divisors (1).

101530939 is an equidigital number, since it uses as much as digits as its factorization.

101530939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3645, while the sum is 31.

The square root of 101530939 is about 10076.2561996011. The cubic root of 101530939 is about 466.5155606579.

The spelling of 101530939 in words is "one hundred one million, five hundred thirty thousand, nine hundred thirty-nine".