13520542045 has 16 divisors (see below), whose sum is σ = 16478604288. Its totient is φ = 10647362880.

The previous prime is 13520542039. The next prime is 13520542103. The reversal of 13520542045 is 54024502531.

It is not a de Polignac number, because 13520542045 - 2⁷ = 13520541917 is a prime.

It is a super-2 number, since 2×13520542045² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13520541998 and 13520542016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 479067 + ... + 506503.

It is an arithmetic number, because the mean of its divisors is an integer number (1029912768).

Almost surely, 2^13520542045 is an apocalyptic number.

It is an amenable number.

13520542045 is a deficient number, since it is larger than the sum of its proper divisors (2958062243).

13520542045 is a wasteful number, since it uses less digits than its factorization.

13520542045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28980.

The product of its (nonzero) digits is 24000, while the sum is 31.

The spelling of 13520542045 in words is "thirteen billion, five hundred twenty million, five hundred forty-two thousand, forty-five".