13445540131541 has 8 divisors (see below), whose sum is σ = 15618238654464. Its totient is φ = 11335818377520.

The previous prime is 13445540131519. The next prime is 13445540131591. The reversal of 13445540131541 is 14513104554431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13445540131541 - 2¹⁸ = 13445539869397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13445540131591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15744191765 + ... + 15744192618.

It is an arithmetic number, because the mean of its divisors is an integer number (1952279831808).

Almost surely, 2^{13445540131541} is an apocalyptic number.

It is an amenable number.

13445540131541 is a deficient number, since it is larger than the sum of its proper divisors (2172698522923).

13445540131541 is an equidigital number, since it uses as much as digits as its factorization.

13445540131541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31488384451.

The product of its (nonzero) digits is 288000, while the sum is 41.

Adding to 13445540131541 its reverse (14513104554431), we get a palindrome (27958644685972).

The spelling of 13445540131541 in words is "thirteen trillion, four hundred forty-five billion, five hundred forty million, one hundred thirty-one thousand, five hundred forty-one".