1285066907 has 4 divisors (see below), whose sum is σ = 1360659096. Its totient is φ = 1209474720.

The previous prime is 1285066883. The next prime is 1285067029. The reversal of 1285066907 is 7096605821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7096605821 = 887 ⋅8000683.

It is a cyclic number.

It is not a de Polignac number, because 1285066907 - 2¹² = 1285062811 is a prime.

It is a super-3 number, since 3×1285066907³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1285066207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37796069 + ... + 37796102.

It is an arithmetic number, because the mean of its divisors is an integer number (340164774).

Almost surely, 2^1285066907 is an apocalyptic number.

1285066907 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1285066907 is a deficient number, since it is larger than the sum of its proper divisors (75592189).

1285066907 is an equidigital number, since it uses as much as digits as its factorization.

1285066907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75592188.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 1285066907 is about 35847.8298785296. The cubic root of 1285066907 is about 1087.1978376090.

The spelling of 1285066907 in words is "one billion, two hundred eighty-five million, sixty-six thousand, nine hundred seven".