12859145 has 16 divisors (see below), whose sum is σ = 16725072. Its totient is φ = 9434880.

The previous prime is 12859127. The next prime is 12859163. The reversal of 12859145 is 54195821.

It is an interprime number because it is at equal distance from previous prime (12859127) and next prime (12859163).

It can be written as a sum of positive squares in 8 ways, for example, as 942841 + 11916304 = 971^2 + 3452^2 .

It is not a de Polignac number, because 12859145 - 2⁶ = 12859081 is a prime.

It is a super-2 number, since 2×12859145² = 330715220262050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11219 + ... + 12311.

It is an arithmetic number, because the mean of its divisors is an integer number (1045317).

Almost surely, 2^12859145 is an apocalyptic number.

It is an amenable number.

12859145 is a deficient number, since it is larger than the sum of its proper divisors (3865927).

12859145 is a wasteful number, since it uses less digits than its factorization.

12859145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292.

The product of its digits is 14400, while the sum is 35.

The square root of 12859145 is about 3585.9650026178. The cubic root of 12859145 is about 234.2811593510.

The spelling of 12859145 in words is "twelve million, eight hundred fifty-nine thousand, one hundred forty-five".