102572717 has 4 divisors (see below), whose sum is σ = 110462940. Its totient is φ = 94682496.

The previous prime is 102572689. The next prime is 102572719. The reversal of 102572717 is 717275201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36735721 + 65836996 = 6061^2 + 8114^2 .

It is a cyclic number.

It is not a de Polignac number, because 102572717 - 2²⁰ = 101524141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102572719) 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 in 3 ways as a sum of consecutive naturals, for example, 3945092 + ... + 3945117.

It is an arithmetic number, because the mean of its divisors is an integer number (27615735).

Almost surely, 2^102572717 is an apocalyptic number.

It is an amenable number.

102572717 is a deficient number, since it is larger than the sum of its proper divisors (7890223).

102572717 is an equidigital number, since it uses as much as digits as its factorization.

102572717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7890222.

The product of its (nonzero) digits is 6860, while the sum is 32.

The square root of 102572717 is about 10127.8189656016. The cubic root of 102572717 is about 468.1057255598.

The spelling of 102572717 in words is "one hundred two million, five hundred seventy-two thousand, seven hundred seventeen".