1282878345 has 16 divisors (see below), whose sum is σ = 2345834880. Its totient is φ = 586458624.

The previous prime is 1282878299. The next prime is 1282878349. The reversal of 1282878345 is 5438782821.

1282878345 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1282878345 - 2¹⁸ = 1282616201 is a prime.

It is a super-3 number, since 3×1282878345³ (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1282878294 and 1282878303.

It is not an unprimeable number, because it can be changed into a prime (1282878349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6108840 + ... + 6109049.

It is an arithmetic number, because the mean of its divisors is an integer number (146614680).

Almost surely, 2^1282878345 is an apocalyptic number.

1282878345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1282878345 is a deficient number, since it is larger than the sum of its proper divisors (1062956535).

1282878345 is a wasteful number, since it uses less digits than its factorization.

1282878345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12217904.

The product of its digits is 860160, while the sum is 48.

The square root of 1282878345 is about 35817.2911454789. The cubic root of 1282878345 is about 1086.5802946874.

The spelling of 1282878345 in words is "one billion, two hundred eighty-two million, eight hundred seventy-eight thousand, three hundred forty-five".