1305245451139 has 8 divisors (see below), whose sum is σ = 1519854541920. Its totient is φ = 1097672724096.

The previous prime is 1305245451127. The next prime is 1305245451143. The reversal of 1305245451139 is 9311545425031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1305245451139 - 2⁷ = 1305245451011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1305245451095 and 1305245451104.

It is not an unprimeable number, because it can be changed into a prime (1305245451199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1759090534 + ... + 1759091275.

It is an arithmetic number, because the mean of its divisors is an integer number (189981817740).

Almost surely, 2^{1305245451139} is an apocalyptic number.

1305245451139 is a deficient number, since it is larger than the sum of its proper divisors (214609090781).

1305245451139 is an equidigital number, since it uses as much as digits as its factorization.

1305245451139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3518181869.

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 1305245451139 in words is "one trillion, three hundred five billion, two hundred forty-five million, four hundred fifty-one thousand, one hundred thirty-nine".