13525440145 has 16 divisors (see below), whose sum is σ = 19355662080. Its totient is φ = 8871344064.

The previous prime is 13525440143. The next prime is 13525440179. The reversal of 13525440145 is 54104452531.

13525440145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13525440145 - 2¹ = 13525440143 is a prime.

It is a super-2 number, since 2×13525440145² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13525440145.

It is not an unprimeable number, because it can be changed into a prime (13525440143) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 8400090 + ... + 8401699.

It is an arithmetic number, because the mean of its divisors is an integer number (1209728880).

Almost surely, 2^13525440145 is an apocalyptic number.

It is an amenable number.

13525440145 is a deficient number, since it is larger than the sum of its proper divisors (5830221935).

13525440145 is a wasteful number, since it uses less digits than its factorization.

13525440145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16801824.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 13525440145 its reverse (54104452531), we get a palindrome (67629892676).

The spelling of 13525440145 in words is "thirteen billion, five hundred twenty-five million, four hundred forty thousand, one hundred forty-five".