105444025541 has 4 divisors (see below), whose sum is σ = 108015831084. Its totient is φ = 102872220000.

The previous prime is 105444025523. The next prime is 105444025543. The reversal of 105444025541 is 145520444501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 145520444501 = 631 ⋅230618771.

It can be written as a sum of positive squares in 2 ways, for example, as 63178833316 + 42265192225 = 251354^2 + 205585^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105444025541 is a prime.

It is a super-2 number, since 2×105444025541² (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 (105444025543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1285902710 + ... + 1285902791.

It is an arithmetic number, because the mean of its divisors is an integer number (27003957771).

Almost surely, 2^105444025541 is an apocalyptic number.

It is an amenable number.

105444025541 is a deficient number, since it is larger than the sum of its proper divisors (2571805543).

105444025541 is an equidigital number, since it uses as much as digits as its factorization.

105444025541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2571805542.

The product of its (nonzero) digits is 64000, while the sum is 35.

The spelling of 105444025541 in words is "one hundred five billion, four hundred forty-four million, twenty-five thousand, five hundred forty-one".