1286012160 has 288 divisors, whose sum is σ = 4615188480. Its totient is φ = 339075072.

The previous prime is 1286012149. The next prime is 1286012171. The reversal of 1286012160 is 612106821.

It is an interprime number because it is at equal distance from previous prime (1286012149) and next prime (1286012171).

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4388974 + ... + 4389266.

It is an arithmetic number, because the mean of its divisors is an integer number (16024960).

Almost surely, 2^1286012160 is an apocalyptic number.

1286012160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1286012160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2307594240).

1286012160 is an abundant number, since it is smaller than the sum of its proper divisors (3329176320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1286012160 is a wasteful number, since it uses less digits than its factorization.

1286012160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1286012160 is about 35861.0116979429. The cubic root of 1286012160 is about 1087.4643412802.

Adding to 1286012160 its reverse (612106821), we get a palindrome (1898118981).

The spelling of 1286012160 in words is "one billion, two hundred eighty-six million, twelve thousand, one hundred sixty".