1309482530 has 16 divisors (see below), whose sum is σ = 2438347320. Its totient is φ = 505731072.

The previous prime is 1309482491. The next prime is 1309482553. The reversal of 1309482530 is 352849031.

It can be written as a sum of positive squares in 4 ways, for example, as 1102439209 + 207043321 = 33203^2 + 14389^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2257439 + ... + 2258018.

Almost surely, 2^1309482530 is an apocalyptic number.

1309482530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1309482530 is a deficient number, since it is larger than the sum of its proper divisors (1128864790).

1309482530 is a wasteful number, since it uses less digits than its factorization.

1309482530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4515493.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 1309482530 is about 36186.7728597066. The cubic root of 1309482530 is about 1094.0400892368.

The spelling of 1309482530 in words is "one billion, three hundred nine million, four hundred eighty-two thousand, five hundred thirty".