259000145 has 8 divisors (see below), whose sum is σ = 312158760. Its totient is φ = 206294400.

The previous prime is 259000121. The next prime is 259000169. The reversal of 259000145 is 541000952.

It is an interprime number because it is at equal distance from previous prime (259000121) and next prime (259000169).

It can be written as a sum of positive squares in 4 ways, for example, as 164968336 + 94031809 = 12844^2 + 9697^2 .

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

It is not a de Polignac number, because 259000145 - 2⁶ = 259000081 is a prime.

It is a super-2 number, since 2×259000145² = 134162150220042050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111956 + ... + 114245.

It is an arithmetic number, because the mean of its divisors is an integer number (39019845).

Almost surely, 2^259000145 is an apocalyptic number.

It is an amenable number.

259000145 is a deficient number, since it is larger than the sum of its proper divisors (53158615).

259000145 is a wasteful number, since it uses less digits than its factorization.

259000145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226435.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 259000145 is about 16093.4814443613. The cubic root of 259000145 is about 637.4312277472.

The spelling of 259000145 in words is "two hundred fifty-nine million, one hundred forty-five", and thus it is an aban number.