1285412748 has 12 divisors (see below), whose sum is σ = 2999296440. Its totient is φ = 428470912.

The previous prime is 1285412747. The next prime is 1285412749. The reversal of 1285412748 is 8472145821.

It is an interprime number because it is at equal distance from previous prime (1285412747) and next prime (1285412749).

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1285412743) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 53558853 + ... + 53558876.

It is an arithmetic number, because the mean of its divisors is an integer number (249941370).

Almost surely, 2^1285412748 is an apocalyptic number.

It is an amenable number.

1285412748 is an abundant number, since it is smaller than the sum of its proper divisors (1713883692).

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

1285412748 is a wasteful number, since it uses less digits than its factorization.

1285412748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107117736 (or 107117734 counting only the distinct ones).

The product of its digits is 143360, while the sum is 42.

The square root of 1285412748 is about 35852.6532909351. The cubic root of 1285412748 is about 1087.2953588251.

The spelling of 1285412748 in words is "one billion, two hundred eighty-five million, four hundred twelve thousand, seven hundred forty-eight".