1285134026 has 8 divisors (see below), whose sum is σ = 2102946624. Its totient is φ = 584151820.

The previous prime is 1285134013. The next prime is 1285134079. The reversal of 1285134026 is 6204315821.

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 = 1285133983 and 1285134001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29207570 + ... + 29207613.

It is an arithmetic number, because the mean of its divisors is an integer number (262868328).

Almost surely, 2^1285134026 is an apocalyptic number.

1285134026 is a deficient number, since it is larger than the sum of its proper divisors (817812598).

1285134026 is a wasteful number, since it uses less digits than its factorization.

1285134026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58415196.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1285134026 is about 35848.7660317618. The cubic root of 1285134026 is about 1087.2167653813.

Adding to 1285134026 its reverse (6204315821), we get a palindrome (7489449847).

The spelling of 1285134026 in words is "one billion, two hundred eighty-five million, one hundred thirty-four thousand, twenty-six".