102725717 has 2 divisors, whose sum is σ = 102725718. Its totient is φ = 102725716.

The previous prime is 102725681. The next prime is 102725729. The reversal of 102725717 is 717527201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73034116 + 29691601 = 8546^2 + 5449^2 .

It is a cyclic number.

It is not a de Polignac number, because 102725717 - 2⁸ = 102725461 is a prime.

It is a Chen prime.

It is equal to p_5909432 and since 102725717 and 5909432 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102725737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51362858 + 51362859.

It is an arithmetic number, because the mean of its divisors is an integer number (51362859).

Almost surely, 2^102725717 is an apocalyptic number.

It is an amenable number.

102725717 is a deficient number, since it is larger than the sum of its proper divisors (1).

102725717 is an equidigital number, since it uses as much as digits as its factorization.

102725717 is an odious number, because the sum of its binary digits is odd.

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

The square root of 102725717 is about 10135.3696035221. The cubic root of 102725717 is about 468.3383559559.

The spelling of 102725717 in words is "one hundred two million, seven hundred twenty-five thousand, seven hundred seventeen".