13530244005 has 12 divisors (see below), whose sum is σ = 23452423020. Its totient is φ = 7216130112.

The previous prime is 13530244003. The next prime is 13530244009. The reversal of 13530244005 is 50044203531.

It can be written as a sum of positive squares in 2 ways, for example, as 6827055876 + 6703188129 = 82626^2 + 81873^2 .

It is not a de Polignac number, because 13530244005 - 2¹ = 13530244003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13530244005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13530244003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150336000 + ... + 150336089.

It is an arithmetic number, because the mean of its divisors is an integer number (1954368585).

Almost surely, 2^13530244005 is an apocalyptic number.

13530244005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13530244005 is a deficient number, since it is larger than the sum of its proper divisors (9922179015).

13530244005 is a wasteful number, since it uses less digits than its factorization.

13530244005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300672100 (or 300672097 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 13530244005 its reverse (50044203531), we get a palindrome (63574447536).

The spelling of 13530244005 in words is "thirteen billion, five hundred thirty million, two hundred forty-four thousand, five".