1313563453445 has 8 divisors (see below), whose sum is σ = 1576529235960. Its totient is φ = 1050682034880.

The previous prime is 1313563453439. The next prime is 1313563453453. The reversal of 1313563453445 is 5443543653131.

It can be written as a sum of positive squares in 4 ways, for example, as 53328203041 + 1260235250404 = 230929^2 + 1122602^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-1313563453445 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1313563453445.

It is a congruent number.

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, 21056726 + ... + 21119015.

It is an arithmetic number, because the mean of its divisors is an integer number (197066154495).

Almost surely, 2^{1313563453445} is an apocalyptic number.

It is an amenable number.

1313563453445 is a deficient number, since it is larger than the sum of its proper divisors (262965782515).

1313563453445 is an equidigital number, since it uses as much as digits as its factorization.

1313563453445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42181975.

The product of its digits is 3888000, while the sum is 47.

The spelling of 1313563453445 in words is "one trillion, three hundred thirteen billion, five hundred sixty-three million, four hundred fifty-three thousand, four hundred forty-five".