102081243 has 64 divisors (see below), whose sum is σ = 169274880. Its totient is φ = 53913600.

The previous prime is 102081223. The next prime is 102081251. The reversal of 102081243 is 342180201.

It is not a de Polignac number, because 102081243 - 2⁵ = 102081211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102081223) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 650121 + ... + 650277.

It is an arithmetic number, because the mean of its divisors is an integer number (2644920).

Almost surely, 2^102081243 is an apocalyptic number.

102081243 is a deficient number, since it is larger than the sum of its proper divisors (67193637).

102081243 is a wasteful number, since it uses less digits than its factorization.

102081243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 102081243 is about 10103.5262656164. The cubic root of 102081243 is about 467.3568902425.

The spelling of 102081243 in words is "one hundred two million, eighty-one thousand, two hundred forty-three".