259401145 has 8 divisors (see below), whose sum is σ = 315032256. Its totient is φ = 205020336.

The previous prime is 259401139. The next prime is 259401157. The reversal of 259401145 is 541104952.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 259401145 - 2⁷ = 259401017 is a prime.

It is a super-2 number, since 2×259401145² = 134577908054622050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 312117 + ... + 312946.

It is an arithmetic number, because the mean of its divisors is an integer number (39379032).

Almost surely, 2^259401145 is an apocalyptic number.

It is an amenable number.

259401145 is a deficient number, since it is larger than the sum of its proper divisors (55631111).

259401145 is an equidigital number, since it uses as much as digits as its factorization.

259401145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625151.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 259401145 is about 16105.9350861724. The cubic root of 259401145 is about 637.7600282307.

The spelling of 259401145 in words is "two hundred fifty-nine million, four hundred one thousand, one hundred forty-five".