1285143063 has 8 divisors (see below), whose sum is σ = 1716960000. Its totient is φ = 855044088.

The previous prime is 1285143049. The next prime is 1285143113. The reversal of 1285143063 is 3603415821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1285143063 - 2¹³ = 1285134871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285143763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427743 + ... + 430736.

It is an arithmetic number, because the mean of its divisors is an integer number (214620000).

Almost surely, 2^1285143063 is an apocalyptic number.

1285143063 is a deficient number, since it is larger than the sum of its proper divisors (431816937).

1285143063 is an equidigital number, since it uses as much as digits as its factorization.

1285143063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858981.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 1285143063 is about 35848.8920749303. The cubic root of 1285143063 is about 1087.2193137938.

Adding to 1285143063 its reverse (3603415821), we get a palindrome (4888558884).

The spelling of 1285143063 in words is "one billion, two hundred eighty-five million, one hundred forty-three thousand, sixty-three".