102408881 has 2 divisors, whose sum is σ = 102408882. Its totient is φ = 102408880.

The previous prime is 102408869. The next prime is 102408899. The reversal of 102408881 is 188804201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95726656 + 6682225 = 9784^2 + 2585^2 .

It is a cyclic number.

It is not a de Polignac number, because 102408881 - 2¹⁰ = 102407857 is a prime.

It is a super-2 number, since 2×102408881² = 20975157815344322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102408851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51204440 + 51204441.

It is an arithmetic number, because the mean of its divisors is an integer number (51204441).

Almost surely, 2^102408881 is an apocalyptic number.

It is an amenable number.

102408881 is a deficient number, since it is larger than the sum of its proper divisors (1).

102408881 is an equidigital number, since it uses as much as digits as its factorization.

102408881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4096, while the sum is 32.

The square root of 102408881 is about 10119.7273184607. The cubic root of 102408881 is about 467.8563628280.

The spelling of 102408881 in words is "one hundred two million, four hundred eight thousand, eight hundred eighty-one".