13155545 has 8 divisors (see below), whose sum is σ = 17001096. Its totient is φ = 9714816.

The previous prime is 13155539. The next prime is 13155551. The reversal of 13155545 is 54555131.

It is an interprime number because it is at equal distance from previous prime (13155539) and next prime (13155551).

It can be written as a sum of positive squares in 4 ways, for example, as 80089 + 13075456 = 283^2 + 3616^2 .

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 13155545 - 2⁴ = 13155529 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101132 + ... + 101261.

It is an arithmetic number, because the mean of its divisors is an integer number (2125137).

Almost surely, 2^13155545 is an apocalyptic number.

It is an amenable number.

13155545 is a deficient number, since it is larger than the sum of its proper divisors (3845551).

13155545 is a wasteful number, since it uses less digits than its factorization.

13155545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202411.

The product of its digits is 7500, while the sum is 29.

The square root of 13155545 is about 3627.0573472169. The cubic root of 13155545 is about 236.0675438671.

The spelling of 13155545 in words is "thirteen million, one hundred fifty-five thousand, five hundred forty-five".