102404881 has 2 divisors, whose sum is σ = 102404882. Its totient is φ = 102404880.

The previous prime is 102404867. The next prime is 102404903. The reversal of 102404881 is 188404201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51710481 + 50694400 = 7191^2 + 7120^2 .

It is a cyclic number.

It is not a de Polignac number, because 102404881 - 2⁵ = 102404849 is a prime.

It is a super-2 number, since 2×102404881² = 20973519305248322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102404831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51202440 + 51202441.

It is an arithmetic number, because the mean of its divisors is an integer number (51202441).

Almost surely, 2^102404881 is an apocalyptic number.

It is an amenable number.

102404881 is a deficient number, since it is larger than the sum of its proper divisors (1).

102404881 is an equidigital number, since it uses as much as digits as its factorization.

102404881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 102404881 is about 10119.5296827471. The cubic root of 102404881 is about 467.8502713973.

It can be divided in two parts, 102404 and 881, that added together give a triangular number (103285 = T₄₅₄).

The spelling of 102404881 in words is "one hundred two million, four hundred four thousand, eight hundred eighty-one".