853187513 has 2 divisors, whose sum is σ = 853187514. Its totient is φ = 853187512.

The previous prime is 853187509. The next prime is 853187527. The reversal of 853187513 is 315781358.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 835614649 + 17572864 = 28907^2 + 4192^2 .

It is a cyclic number.

It is not a de Polignac number, because 853187513 - 2² = 853187509 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (853187563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426593756 + 426593757.

It is an arithmetic number, because the mean of its divisors is an integer number (426593757).

Almost surely, 2^853187513 is an apocalyptic number.

It is an amenable number.

853187513 is a deficient number, since it is larger than the sum of its proper divisors (1).

853187513 is an equidigital number, since it uses as much as digits as its factorization.

853187513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 41.

The square root of 853187513 is about 29209.3737180378. The cubic root of 853187513 is about 948.4508502688.

The spelling of 853187513 in words is "eight hundred fifty-three million, one hundred eighty-seven thousand, five hundred thirteen".