859214549 has 2 divisors, whose sum is σ = 859214550. Its totient is φ = 859214548.

The previous prime is 859214513. The next prime is 859214579. The reversal of 859214549 is 945412958.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 784392049 + 74822500 = 28007^2 + 8650^2 .

It is a cyclic number.

It is not a de Polignac number, because 859214549 - 2¹² = 859210453 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (859214579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429607274 + 429607275.

It is an arithmetic number, because the mean of its divisors is an integer number (429607275).

Almost surely, 2^859214549 is an apocalyptic number.

It is an amenable number.

859214549 is a deficient number, since it is larger than the sum of its proper divisors (1).

859214549 is an equidigital number, since it uses as much as digits as its factorization.

859214549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 47.

The square root of 859214549 is about 29312.3617096951. The cubic root of 859214549 is about 950.6789418081.

The spelling of 859214549 in words is "eight hundred fifty-nine million, two hundred fourteen thousand, five hundred forty-nine".