1326560155 has 8 divisors (see below), whose sum is σ = 1593396000. Its totient is φ = 1060232256.

The previous prime is 1326560141. The next prime is 1326560203. The reversal of 1326560155 is 5510656231.

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 1326560155 - 2¹⁵ = 1326527387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1326560155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121215 + ... + 131704.

It is an arithmetic number, because the mean of its divisors is an integer number (199174500).

Almost surely, 2^1326560155 is an apocalyptic number.

1326560155 is a deficient number, since it is larger than the sum of its proper divisors (266835845).

1326560155 is a wasteful number, since it uses less digits than its factorization.

1326560155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253973.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 1326560155 is about 36421.9735187428. The cubic root of 1326560155 is about 1098.7755397069.

The spelling of 1326560155 in words is "one billion, three hundred twenty-six million, five hundred sixty thousand, one hundred fifty-five".