1305389130 has 32 divisors (see below), whose sum is σ = 3141936000. Its totient is φ = 347103552.

The previous prime is 1305389117. The next prime is 1305389131. The reversal of 1305389130 is 319835031.

It is a junction number, because it is equal to n+sod(n) for n = 1305389091 and 1305389100.

It is not an unprimeable number, because it can be changed into a prime (1305389131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51870 + ... + 72809.

It is an arithmetic number, because the mean of its divisors is an integer number (98185500).

Almost surely, 2^1305389130 is an apocalyptic number.

1305389130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1305389130 is an abundant number, since it is smaller than the sum of its proper divisors (1836546870).

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

1305389130 is a wasteful number, since it uses less digits than its factorization.

1305389130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125038.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 1305389130 is about 36130.1692495344. The cubic root of 1305389130 is about 1092.8989213568.

The spelling of 1305389130 in words is "one billion, three hundred five million, three hundred eighty-nine thousand, one hundred thirty".