13541232545 has 8 divisors (see below), whose sum is σ = 16251589224. Its totient is φ = 10831579264.

The previous prime is 13541232541. The next prime is 13541232577. The reversal of 13541232545 is 54523214531.

It can be written as a sum of positive squares in 4 ways, for example, as 81288256 + 13459944289 = 9016^2 + 116017^2 .

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 13541232545 - 2² = 13541232541 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13541232541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132524 + ... + 211293.

It is an arithmetic number, because the mean of its divisors is an integer number (2031448653).

Almost surely, 2^13541232545 is an apocalyptic number.

It is an amenable number.

13541232545 is a deficient number, since it is larger than the sum of its proper divisors (2710356679).

13541232545 is an equidigital number, since it uses as much as digits as its factorization.

13541232545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351699.

The product of its digits is 72000, while the sum is 35.

The spelling of 13541232545 in words is "thirteen billion, five hundred forty-one million, two hundred thirty-two thousand, five hundred forty-five".