1285968107 has 4 divisors (see below), whose sum is σ = 1286040840. Its totient is φ = 1285895376.

The previous prime is 1285968067. The next prime is 1285968113. The reversal of 1285968107 is 7018695821.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1285968107 - 2²⁴ = 1269190891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1285968007) 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, 9119 + ... + 51527.

It is an arithmetic number, because the mean of its divisors is an integer number (321510210).

Almost surely, 2^1285968107 is an apocalyptic number.

1285968107 is a deficient number, since it is larger than the sum of its proper divisors (72733).

1285968107 is an equidigital number, since it uses as much as digits as its factorization.

1285968107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72732.

The product of its (nonzero) digits is 241920, while the sum is 47.

The square root of 1285968107 is about 35860.3974740939. The cubic root of 1285968107 is about 1087.4519239239.

The spelling of 1285968107 in words is "one billion, two hundred eighty-five million, nine hundred sixty-eight thousand, one hundred seven".