105542081 has 8 divisors (see below), whose sum is σ = 108144960. Its totient is φ = 102946032.

The previous prime is 105542057. The next prime is 105542117. The reversal of 105542081 is 180245501.

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

It is a cyclic number.

It is not a de Polignac number, because 105542081 - 2²⁶ = 38433217 is a prime.

It is a super-2 number, since 2×105542081² = 22278261723621122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 105542081.

It is not an unprimeable number, because it can be changed into a prime (105542581) 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, 44555 + ... + 46863.

It is an arithmetic number, because the mean of its divisors is an integer number (13518120).

Almost surely, 2^105542081 is an apocalyptic number.

It is an amenable number.

105542081 is a deficient number, since it is larger than the sum of its proper divisors (2602879).

105542081 is a wasteful number, since it uses less digits than its factorization.

105542081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3415.

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 105542081 is about 10273.3675588874. The cubic root of 105542081 is about 472.5798691073.

Adding to 105542081 its reverse (180245501), we get a palindrome (285787582).

It can be divided in two parts, 1055420 and 81, that added together give a palindrome (1055501).

The spelling of 105542081 in words is "one hundred five million, five hundred forty-two thousand, eighty-one".