1286534 has 8 divisors (see below), whose sum is σ = 1958808. Its totient is φ = 633600.

The previous prime is 1286533. The next prime is 1286557. The reversal of 1286534 is 4356821.

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

It is a junction number, because it is equal to n+sod(n) for n = 1286497 and 1286506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1286533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4667 + ... + 4934.

It is an arithmetic number, because the mean of its divisors is an integer number (244851).

2^1286534 is an apocalyptic number.

1286534 is a deficient number, since it is larger than the sum of its proper divisors (672274).

1286534 is an equidigital number, since it uses as much as digits as its factorization.

1286534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9670.

The product of its digits is 5760, while the sum is 29.

The square root of 1286534 is about 1134.2548214577. The cubic root of 1286534 is about 108.7611412376.

The spelling of 1286534 in words is "one million, two hundred eighty-six thousand, five hundred thirty-four".