101953939 has 2 divisors, whose sum is σ = 101953940. Its totient is φ = 101953938.

The previous prime is 101953933. The next prime is 101953961. The reversal of 101953939 is 939359101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101953939 - 2³ = 101953931 is a prime.

It is not a weakly prime, because it can be changed into another prime (101953931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50976969 + 50976970.

It is an arithmetic number, because the mean of its divisors is an integer number (50976970).

Almost surely, 2^101953939 is an apocalyptic number.

101953939 is a deficient number, since it is larger than the sum of its proper divisors (1).

101953939 is an equidigital number, since it uses as much as digits as its factorization.

101953939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32805, while the sum is 40.

The square root of 101953939 is about 10097.2243215648. The cubic root of 101953939 is about 467.1625314837.

The spelling of 101953939 in words is "one hundred one million, nine hundred fifty-three thousand, nine hundred thirty-nine".