1325409331185 has 24 divisors (see below), whose sum is σ = 2301399644544. Its totient is φ = 705646985760.

The previous prime is 1325409331151. The next prime is 1325409331193. The reversal of 1325409331185 is 5811339045231.

1325409331185 is a `hidden beast` number, since 1 + 3 + 2 + 540 + 93 + 3 + 1 + 18 + 5 = 666.

It is not a de Polignac number, because 1325409331185 - 2²⁹ = 1324872460273 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1325409331185.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25765497 + ... + 25816886.

It is an arithmetic number, because the mean of its divisors is an integer number (95891651856).

Almost surely, 2^{1325409331185} is an apocalyptic number.

1325409331185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1325409331185 is a deficient number, since it is larger than the sum of its proper divisors (975990313359).

1325409331185 is a wasteful number, since it uses less digits than its factorization.

1325409331185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51582965 (or 51582962 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 1325409331185 in words is "one trillion, three hundred twenty-five billion, four hundred nine million, three hundred thirty-one thousand, one hundred eighty-five".