859536149 has 2 divisors, whose sum is σ = 859536150. Its totient is φ = 859536148.

The previous prime is 859536143. The next prime is 859536173. The reversal of 859536149 is 941635958.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 567297124 + 292239025 = 23818^2 + 17095^2 .

It is a cyclic number.

It is not a de Polignac number, because 859536149 - 2⁸ = 859535893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 859536097 and 859536106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (859536143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429768074 + 429768075.

It is an arithmetic number, because the mean of its divisors is an integer number (429768075).

Almost surely, 2^859536149 is an apocalyptic number.

It is an amenable number.

859536149 is a deficient number, since it is larger than the sum of its proper divisors (1).

859536149 is an equidigital number, since it uses as much as digits as its factorization.

859536149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1166400, while the sum is 50.

The square root of 859536149 is about 29317.8469366357. The cubic root of 859536149 is about 950.7975385779.

It can be divided in two parts, 8595 and 36149, that added together give a palindrome (44744).

The spelling of 859536149 in words is "eight hundred fifty-nine million, five hundred thirty-six thousand, one hundred forty-nine".