102356081 has 2 divisors, whose sum is σ = 102356082. Its totient is φ = 102356080.

The previous prime is 102356077. The next prime is 102356087. The reversal of 102356081 is 180653201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87984400 + 14371681 = 9380^2 + 3791^2 .

It is a cyclic number.

It is not a de Polignac number, because 102356081 - 2² = 102356077 is a prime.

It is a super-2 number, since 2×102356081² = 20953534635357122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102356081.

It is not a weakly prime, because it can be changed into another prime (102356087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51178040 + 51178041.

It is an arithmetic number, because the mean of its divisors is an integer number (51178041).

Almost surely, 2^102356081 is an apocalyptic number.

It is an amenable number.

102356081 is a deficient number, since it is larger than the sum of its proper divisors (1).

102356081 is an equidigital number, since it uses as much as digits as its factorization.

102356081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 102356081 is about 10117.1182161720. The cubic root of 102356081 is about 467.7759431666.

The spelling of 102356081 in words is "one hundred two million, three hundred fifty-six thousand, eighty-one".