102881 has 2 divisors, whose sum is σ = 102882. Its totient is φ = 102880.

The previous prime is 102877. The next prime is 102911. The reversal of 102881 is 188201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99856 + 3025 = 316^2 + 55^2 .

It is a cyclic number.

It is not a de Polignac number, because 102881 - 2² = 102877 is a prime.

It is a super-2 number, since 2×102881² = 21169000322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 102881.

It is not a weakly prime, because it can be changed into another prime (102811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51440 + 51441.

It is an arithmetic number, because the mean of its divisors is an integer number (51441).

2¹⁰²⁸⁸¹ is an apocalyptic number.

It is an amenable number.

102881 is a deficient number, since it is larger than the sum of its proper divisors (1).

102881 is an equidigital number, since it uses as much as digits as its factorization.

102881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 102881 is about 320.7506819946. The cubic root of 102881 is about 46.8574221500.

The spelling of 102881 in words is "one hundred two thousand, eight hundred eighty-one".