259140859 has 4 divisors (see below), whose sum is σ = 266144704. Its totient is φ = 252137016.

The previous prime is 259140853. The next prime is 259140863. The reversal of 259140859 is 958041952.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 259140859 - 2⁹ = 259140347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (259140853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3501867 + ... + 3501940.

It is an arithmetic number, because the mean of its divisors is an integer number (66536176).

Almost surely, 2^259140859 is an apocalyptic number.

259140859 is a deficient number, since it is larger than the sum of its proper divisors (7003845).

259140859 is an equidigital number, since it uses as much as digits as its factorization.

259140859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7003844.

The product of its (nonzero) digits is 129600, while the sum is 43.

The square root of 259140859 is about 16097.8526207690. The cubic root of 259140859 is about 637.5466450042.

The spelling of 259140859 in words is "two hundred fifty-nine million, one hundred forty thousand, eight hundred fifty-nine".