1285078445 has 8 divisors (see below), whose sum is σ = 1762393344. Its totient is φ = 881196624.

The previous prime is 1285078423. The next prime is 1285078481. The reversal of 1285078445 is 5448705821.

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

It is not a de Polignac number, because 1285078445 - 2⁶ = 1285078381 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1285078396 and 1285078405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18358229 + ... + 18358298.

It is an arithmetic number, because the mean of its divisors is an integer number (220299168).

Almost surely, 2^1285078445 is an apocalyptic number.

It is an amenable number.

1285078445 is a deficient number, since it is larger than the sum of its proper divisors (477314899).

1285078445 is an equidigital number, since it uses as much as digits as its factorization.

1285078445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36716539.

The product of its (nonzero) digits is 358400, while the sum is 44.

The square root of 1285078445 is about 35847.9908084121. The cubic root of 1285078445 is about 1087.2010914088.

The spelling of 1285078445 in words is "one billion, two hundred eighty-five million, seventy-eight thousand, four hundred forty-five".