102384081 has 20 divisors (see below), whose sum is σ = 161943012. Its totient is φ = 64240128.

The previous prime is 102384077. The next prime is 102384089. The reversal of 102384081 is 180483201.

It can be written as a sum of positive squares in 2 ways, for example, as 77792400 + 24591681 = 8820^2 + 4959^2 .

It is not a de Polignac number, because 102384081 - 2² = 102384077 is a prime.

It is a super-2 number, since 2×102384081² = 20965000084429122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (102384089) 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 in 19 ways as a sum of consecutive naturals, for example, 35800 + ... + 38553.

Almost surely, 2^102384081 is an apocalyptic number.

It is an amenable number.

102384081 is a deficient number, since it is larger than the sum of its proper divisors (59558931).

102384081 is an equidigital number, since it uses as much as digits as its factorization.

102384081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74382 (or 74373 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 102384081 is about 10118.5019148093. The cubic root of 102384081 is about 467.8185934002.

The spelling of 102384081 in words is "one hundred two million, three hundred eighty-four thousand, eighty-one".