1305142464 has 56 divisors (see below), whose sum is σ = 3494836800. Its totient is φ = 429800704.

The previous prime is 1305142457. The next prime is 1305142499. The reversal of 1305142464 is 4642415031.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25014 + ... + 56885.

It is an arithmetic number, because the mean of its divisors is an integer number (62407800).

Almost surely, 2^1305142464 is an apocalyptic number.

It is an amenable number.

1305142464 is an abundant number, since it is smaller than the sum of its proper divisors (2189694336).

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

1305142464 is an equidigital number, since it uses as much as digits as its factorization.

1305142464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81997 (or 81987 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1305142464 is about 36126.7555144383. The cubic root of 1305142464 is about 1092.8300790525.

Adding to 1305142464 its reverse (4642415031), we get a palindrome (5947557495).

The spelling of 1305142464 in words is "one billion, three hundred five million, one hundred forty-two thousand, four hundred sixty-four".