1305097180 has 24 divisors (see below), whose sum is σ = 2741669280. Its totient is φ = 521855040.

The previous prime is 1305097163. The next prime is 1305097193. The reversal of 1305097180 is 817905031.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 56550 + ... + 76210.

It is an arithmetic number, because the mean of its divisors is an integer number (114236220).

Almost surely, 2^1305097180 is an apocalyptic number.

1305097180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1305097180 is an abundant number, since it is smaller than the sum of its proper divisors (1436572100).

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

1305097180 is a wasteful number, since it uses less digits than its factorization.

1305097180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22989 (or 22987 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 1305097180 is about 36126.1287712924. The cubic root of 1305097180 is about 1092.8174397453.

The spelling of 1305097180 in words is "one billion, three hundred five million, ninety-seven thousand, one hundred eighty".