259198469 has 4 divisors (see below), whose sum is σ = 259492896. Its totient is φ = 258904044.

The previous prime is 259198441. The next prime is 259198483. The reversal of 259198469 is 964891952.

259198469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 259198469 - 2⁸ = 259198213 is a prime.

It is a super-2 number, since 2×259198469² = 134367692663887922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 259198469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259198169) 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, 145889 + ... + 147654.

It is an arithmetic number, because the mean of its divisors is an integer number (64873224).

Almost surely, 2^259198469 is an apocalyptic number.

It is an amenable number.

259198469 is a deficient number, since it is larger than the sum of its proper divisors (294427).

259198469 is an equidigital number, since it uses as much as digits as its factorization.

259198469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294426.

The product of its digits is 1399680, while the sum is 53.

The square root of 259198469 is about 16099.6418904273. The cubic root of 259198469 is about 637.5938861597.

The spelling of 259198469 in words is "two hundred fifty-nine million, one hundred ninety-eight thousand, four hundred sixty-nine".