1286216473 has 8 divisors (see below), whose sum is σ = 1316665856. Its totient is φ = 1255791600.

The previous prime is 1286216369. The next prime is 1286216483. The reversal of 1286216473 is 3746126821.

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 1286216473 - 2¹⁷ = 1286085401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1286216483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141403 + ... + 150223.

It is an arithmetic number, because the mean of its divisors is an integer number (164583232).

Almost surely, 2^1286216473 is an apocalyptic number.

It is an amenable number.

1286216473 is a deficient number, since it is larger than the sum of its proper divisors (30449383).

1286216473 is an equidigital number, since it uses as much as digits as its factorization.

1286216473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12255.

The product of its digits is 96768, while the sum is 40.

The square root of 1286216473 is about 35863.8602635020. The cubic root of 1286216473 is about 1087.5219279147.

The spelling of 1286216473 in words is "one billion, two hundred eighty-six million, two hundred sixteen thousand, four hundred seventy-three".