102411857 has 2 divisors, whose sum is σ = 102411858. Its totient is φ = 102411856.

The previous prime is 102411851. The next prime is 102411871. The reversal of 102411857 is 758114201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69739201 + 32672656 = 8351^2 + 5716^2 .

It is a cyclic number.

It is not a de Polignac number, because 102411857 - 2⁸ = 102411601 is a prime.

It is not a weakly prime, because it can be changed into another prime (102411851) 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, 51205928 + 51205929.

It is an arithmetic number, because the mean of its divisors is an integer number (51205929).

Almost surely, 2^102411857 is an apocalyptic number.

It is an amenable number.

102411857 is a deficient number, since it is larger than the sum of its proper divisors (1).

102411857 is an equidigital number, since it uses as much as digits as its factorization.

102411857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 102411857 is about 10119.8743569276. The cubic root of 102411857 is about 467.8608947496.

The spelling of 102411857 in words is "one hundred two million, four hundred eleven thousand, eight hundred fifty-seven".