859094261 has 2 divisors, whose sum is σ = 859094262. Its totient is φ = 859094260.

The previous prime is 859094251. The next prime is 859094287. The reversal of 859094261 is 162490958.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 438064900 + 421029361 = 20930^2 + 20519^2 .

It is a cyclic number.

It is not a de Polignac number, because 859094261 - 2²² = 854899957 is a prime.

It is a super-2 number, since 2×859094261² = 1476085898566272242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (859094251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429547130 + 429547131.

It is an arithmetic number, because the mean of its divisors is an integer number (429547131).

Almost surely, 2^859094261 is an apocalyptic number.

It is an amenable number.

859094261 is a deficient number, since it is larger than the sum of its proper divisors (1).

859094261 is an equidigital number, since it uses as much as digits as its factorization.

859094261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 859094261 is about 29310.3098073016. The cubic root of 859094261 is about 950.6345754716.

The spelling of 859094261 in words is "eight hundred fifty-nine million, ninety-four thousand, two hundred sixty-one".