1284712425 has 36 divisors (see below), whose sum is σ = 2323886604. Its totient is φ = 678384000.

The previous prime is 1284712397. The next prime is 1284712469. The reversal of 1284712425 is 5242174821.

1284712425 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 30702681 + 1254009744 = 5541^2 + 35412^2 .

It is not a de Polignac number, because 1284712425 - 2⁶ = 1284712361 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1284712425.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5542 + ... + 50991.

Almost surely, 2^1284712425 is an apocalyptic number.

1284712425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1284712425 is a deficient number, since it is larger than the sum of its proper divisors (1039174179).

1284712425 is a wasteful number, since it uses less digits than its factorization.

1284712425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56650 (or 56642 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 1284712425 is about 35842.8852772764. The cubic root of 1284712425 is about 1087.0978616198.

The spelling of 1284712425 in words is "one billion, two hundred eighty-four million, seven hundred twelve thousand, four hundred twenty-five".