1285315471 has 16 divisors (see below), whose sum is σ = 1429240320. Its totient is φ = 1146055680.

The previous prime is 1285315457. The next prime is 1285315487. The reversal of 1285315471 is 1745135821.

It is not a de Polignac number, because 1285315471 - 2¹¹ = 1285313423 is a prime.

It is a super-3 number, since 3×1285315471³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1285315471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285315411) 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 15 ways as a sum of consecutive naturals, for example, 172495 + ... + 179791.

It is an arithmetic number, because the mean of its divisors is an integer number (89327520).

Almost surely, 2^1285315471 is an apocalyptic number.

1285315471 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1285315471 is a deficient number, since it is larger than the sum of its proper divisors (143924849).

1285315471 is a wasteful number, since it uses less digits than its factorization.

1285315471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7614.

The product of its digits is 33600, while the sum is 37.

The square root of 1285315471 is about 35851.2966432178. The cubic root of 1285315471 is about 1087.2679301518.

The spelling of 1285315471 in words is "one billion, two hundred eighty-five million, three hundred fifteen thousand, four hundred seventy-one".