260000145 has 32 divisors (see below), whose sum is σ = 472982400. Its totient is φ = 135438912.

The previous prime is 260000141. The next prime is 260000149. The reversal of 260000145 is 541000062.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (260000141) and next prime (260000149).

It is not a de Polignac number, because 260000145 - 2² = 260000141 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (260000141) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 16590 + ... + 28199.

It is an arithmetic number, because the mean of its divisors is an integer number (14780700).

Almost surely, 2^260000145 is an apocalyptic number.

It is an amenable number.

260000145 is a deficient number, since it is larger than the sum of its proper divisors (212982255).

260000145 is a wasteful number, since it uses less digits than its factorization.

260000145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44846 (or 44840 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 260000145 is about 16124.5199928556. The cubic root of 260000145 is about 638.2505485351.

The spelling of 260000145 in words is "two hundred sixty million, one hundred forty-five", and thus it is an aban number.