102881693 has 2 divisors, whose sum is σ = 102881694. Its totient is φ = 102881692.

The previous prime is 102881651. The next prime is 102881699. The reversal of 102881693 is 396188201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101566084 + 1315609 = 10078^2 + 1147^2 .

It is a cyclic number.

It is not a de Polignac number, because 102881693 - 2¹⁰ = 102880669 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102881699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51440846 + 51440847.

It is an arithmetic number, because the mean of its divisors is an integer number (51440847).

Almost surely, 2^102881693 is an apocalyptic number.

It is an amenable number.

102881693 is a deficient number, since it is larger than the sum of its proper divisors (1).

102881693 is an equidigital number, since it uses as much as digits as its factorization.

102881693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 102881693 is about 10143.0613228946. The cubic root of 102881693 is about 468.5752735930.

The spelling of 102881693 in words is "one hundred two million, eight hundred eighty-one thousand, six hundred ninety-three".