853418261 has 2 divisors, whose sum is σ = 853418262. Its totient is φ = 853418260.

The previous prime is 853418227. The next prime is 853418273. The reversal of 853418261 is 162814358.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 812535025 + 40883236 = 28505^2 + 6394^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-853418261 is a prime.

It is a Chen prime.

It is equal to p_43748057 and since 853418261 and 43748057 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (853418221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426709130 + 426709131.

It is an arithmetic number, because the mean of its divisors is an integer number (426709131).

Almost surely, 2^853418261 is an apocalyptic number.

It is an amenable number.

853418261 is a deficient number, since it is larger than the sum of its proper divisors (1).

853418261 is an equidigital number, since it uses as much as digits as its factorization.

853418261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 38.

The square root of 853418261 is about 29213.3233474043. The cubic root of 853418261 is about 948.5363466794.

The spelling of 853418261 in words is "eight hundred fifty-three million, four hundred eighteen thousand, two hundred sixty-one".