859009149 has 6 divisors (see below), whose sum is σ = 1240791006. Its totient is φ = 572672760.

The previous prime is 859009139. The next prime is 859009153. The reversal of 859009149 is 941900958.

It can be written as a sum of positive squares in only one way, i.e., 858900249 + 108900 = 29307^2 + 330^2 .

It is not a de Polignac number, because 859009149 - 2⁹ = 859008637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (859009139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47722722 + ... + 47722739.

It is an arithmetic number, because the mean of its divisors is an integer number (206798501).

Almost surely, 2^859009149 is an apocalyptic number.

It is an amenable number.

859009149 is a deficient number, since it is larger than the sum of its proper divisors (381781857).

859009149 is a wasteful number, since it uses less digits than its factorization.

859009149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95445467 (or 95445464 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 859009149 is about 29308.8578590159. The cubic root of 859009149 is about 950.6031807474.

The spelling of 859009149 in words is "eight hundred fifty-nine million, nine thousand, one hundred forty-nine".