105513745541 has 12 divisors (see below), whose sum is σ = 110654549856. Its totient is φ = 100585983960.

The previous prime is 105513745537. The next prime is 105513745559. The reversal of 105513745541 is 145547315501.

It is a happy number.

It is not a de Polignac number, because 105513745541 - 2² = 105513745537 is a prime.

It is a super-2 number, since 2×105513745541² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105513745531) 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, 754985 + ... + 883758.

It is an arithmetic number, because the mean of its divisors is an integer number (9221212488).

Almost surely, 2^105513745541 is an apocalyptic number.

It is an amenable number.

105513745541 is a deficient number, since it is larger than the sum of its proper divisors (5140804315).

105513745541 is an equidigital number, since it uses as much as digits as its factorization.

105513745541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638872 (or 1638841 counting only the distinct ones).

The product of its (nonzero) digits is 210000, while the sum is 41.

The spelling of 105513745541 in words is "one hundred five billion, five hundred thirteen million, seven hundred forty-five thousand, five hundred forty-one".