1305525241145 has 8 divisors (see below), whose sum is σ = 1566649450440. Its totient is φ = 1044407418880.

The previous prime is 1305525241109. The next prime is 1305525241147. The reversal of 1305525241145 is 5411425255031.

It can be written as a sum of positive squares in 4 ways, for example, as 703270086544 + 602255154601 = 838612^2 + 776051^2 .

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

It is not a de Polignac number, because 1305525241145 - 2⁸ = 1305525240889 is a prime.

It is a super-2 number, since 2×1305525241145² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1305525241099 and 1305525241108.

It is not an unprimeable number, because it can be changed into a prime (1305525241147) 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, 1134926 + ... + 1974615.

It is an arithmetic number, because the mean of its divisors is an integer number (195831181305).

Almost surely, 2^{1305525241145} is an apocalyptic number.

It is an amenable number.

1305525241145 is a deficient number, since it is larger than the sum of its proper divisors (261124209295).

1305525241145 is an equidigital number, since it uses as much as digits as its factorization.

1305525241145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3193515.

The product of its (nonzero) digits is 120000, while the sum is 38.

The spelling of 1305525241145 in words is "one trillion, three hundred five billion, five hundred twenty-five million, two hundred forty-one thousand, one hundred forty-five".