1305245451140 has 24 divisors (see below), whose sum is σ = 2741052025152. Its totient is φ = 522091213280.

The previous prime is 1305245451127. The next prime is 1305245451143. The reversal of 1305245451140 is 411545425031.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1305245451140.

It is not an unprimeable number, because it can be changed into a prime (1305245451143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1262177 + ... + 2050263.

It is an arithmetic number, because the mean of its divisors is an integer number (114210501048).

Almost surely, 2^{1305245451140} is an apocalyptic number.

1305245451140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1305245451140 is an abundant number, since it is smaller than the sum of its proper divisors (1435806574012).

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

1305245451140 is a wasteful number, since it uses less digits than its factorization.

1305245451140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870907 (or 870905 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

The spelling of 1305245451140 in words is "one trillion, three hundred five billion, two hundred forty-five million, four hundred fifty-one thousand, one hundred forty".