12145013541 has 24 divisors (see below), whose sum is σ = 19268982720. Its totient is φ = 7337030976.

The previous prime is 12145013513. The next prime is 12145013557. The reversal of 12145013541 is 14531054121.

12145013541 is a `hidden beast` number, since 121 + 4 + 501 + 35 + 4 + 1 = 666.

It is not a de Polignac number, because 12145013541 - 2⁵ = 12145013509 is a prime.

It is a super-2 number, since 2×12145013541² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12145013141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1540056 + ... + 1547921.

It is an arithmetic number, because the mean of its divisors is an integer number (802874280).

Almost surely, 2^12145013541 is an apocalyptic number.

It is an amenable number.

12145013541 is a deficient number, since it is larger than the sum of its proper divisors (7123969179).

12145013541 is a wasteful number, since it uses less digits than its factorization.

12145013541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3088025 (or 3088022 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 12145013541 its reverse (14531054121), we get a palindrome (26676067662).

The spelling of 12145013541 in words is "twelve billion, one hundred forty-five million, thirteen thousand, five hundred forty-one".