1312606143 has 12 divisors (see below), whose sum is σ = 1901362320. Its totient is φ = 872589696.

The previous prime is 1312606121. The next prime is 1312606153. The reversal of 1312606143 is 3416062131.

1312606143 is a `hidden beast` number, since 1 + 3 + 12 + 606 + 1 + 43 = 666.

It is not a de Polignac number, because 1312606143 - 2⁵ = 1312606111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312606153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203403 + ... + 209756.

It is an arithmetic number, because the mean of its divisors is an integer number (158446860).

Almost surely, 2^1312606143 is an apocalyptic number.

1312606143 is a deficient number, since it is larger than the sum of its proper divisors (588756177).

1312606143 is a wasteful number, since it uses less digits than its factorization.

1312606143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413518 (or 413515 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1312606143 is about 36229.9067484309. The cubic root of 1312606143 is about 1094.9092987986.

Adding to 1312606143 its reverse (3416062131), we get a palindrome (4728668274).

The spelling of 1312606143 in words is "one billion, three hundred twelve million, six hundred six thousand, one hundred forty-three".