102287473 has 2 divisors, whose sum is σ = 102287474. Its totient is φ = 102287472.

The previous prime is 102287467. The next prime is 102287489. The reversal of 102287473 is 374782201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95589729 + 6697744 = 9777^2 + 2588^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102287473 is a prime.

It is not a weakly prime, because it can be changed into another prime (102287443) 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, 51143736 + 51143737.

It is an arithmetic number, because the mean of its divisors is an integer number (51143737).

Almost surely, 2^102287473 is an apocalyptic number.

It is an amenable number.

102287473 is a deficient number, since it is larger than the sum of its proper divisors (1).

102287473 is an equidigital number, since it uses as much as digits as its factorization.

102287473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 102287473 is about 10113.7269589405. The cubic root of 102287473 is about 467.6714050196.

The spelling of 102287473 in words is "one hundred two million, two hundred eighty-seven thousand, four hundred seventy-three".