1285310530 has 32 divisors (see below), whose sum is σ = 2729364480. Its totient is φ = 426461760.

The previous prime is 1285310497. The next prime is 1285310539. The reversal of 1285310530 is 350135821.

It is not an unprimeable number, because it can be changed into a prime (1285310539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 293985 + ... + 298324.

It is an arithmetic number, because the mean of its divisors is an integer number (85292640).

Almost surely, 2^1285310530 is an apocalyptic number.

1285310530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1285310530 is an abundant number, since it is smaller than the sum of its proper divisors (1444053950).

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

1285310530 is a wasteful number, since it uses less digits than its factorization.

1285310530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592354.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1285310530 is about 35851.2277335100. The cubic root of 1285310530 is about 1087.2665369277.

The spelling of 1285310530 in words is "one billion, two hundred eighty-five million, three hundred ten thousand, five hundred thirty".