853515097 has 2 divisors, whose sum is σ = 853515098. Its totient is φ = 853515096.

The previous prime is 853515083. The next prime is 853515101. The reversal of 853515097 is 790515358.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 541074121 + 312440976 = 23261^2 + 17676^2 .

It is a cyclic number.

It is not a de Polignac number, because 853515097 - 2⁷ = 853514969 is a prime.

It is not a weakly prime, because it can be changed into another prime (853515007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426757548 + 426757549.

It is an arithmetic number, because the mean of its divisors is an integer number (426757549).

Almost surely, 2^853515097 is an apocalyptic number.

It is an amenable number.

853515097 is a deficient number, since it is larger than the sum of its proper divisors (1).

853515097 is an equidigital number, since it uses as much as digits as its factorization.

853515097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 189000, while the sum is 43.

The square root of 853515097 is about 29214.9806948422. The cubic root of 853515097 is about 948.5722216214.

It can be divided in two parts, 8535 and 15097, that added together give a palindrome (23632).

The spelling of 853515097 in words is "eight hundred fifty-three million, five hundred fifteen thousand, ninety-seven".