101717939 has 2 divisors, whose sum is σ = 101717940. Its totient is φ = 101717938.

The previous prime is 101717933. The next prime is 101717989. The reversal of 101717939 is 939717101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101717939 - 2⁴ = 101717923 is a prime.

It is a super-2 number, since 2×101717939² = 20693078228815442, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (101717933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50858969 + 50858970.

It is an arithmetic number, because the mean of its divisors is an integer number (50858970).

Almost surely, 2^101717939 is an apocalyptic number.

101717939 is a deficient number, since it is larger than the sum of its proper divisors (1).

101717939 is an equidigital number, since it uses as much as digits as its factorization.

101717939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11907, while the sum is 38.

The square root of 101717939 is about 10085.5311709399. The cubic root of 101717939 is about 466.8017949387.

The spelling of 101717939 in words is "one hundred one million, seven hundred seventeen thousand, nine hundred thirty-nine".