105121141 has 4 divisors (see below), whose sum is σ = 105142732. Its totient is φ = 105099552.

The previous prime is 105121127. The next prime is 105121147. The reversal of 105121141 is 141121501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 88548100 + 16573041 = 9410^2 + 4071^2 .

It is a cyclic number.

It is not a de Polignac number, because 105121141 - 2¹¹ = 105119093 is a prime.

It is a super-2 number, since 2×105121141² = 22100908570283762, which 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 (105121147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331 + ... + 14503.

It is an arithmetic number, because the mean of its divisors is an integer number (26285683).

Almost surely, 2^105121141 is an apocalyptic number.

It is an amenable number.

105121141 is a deficient number, since it is larger than the sum of its proper divisors (21591).

105121141 is an equidigital number, since it uses as much as digits as its factorization.

105121141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21590.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 105121141 is about 10252.8601375421. The cubic root of 105121141 is about 471.9507588318.

Adding to 105121141 its reverse (141121501), we get a palindrome (246242642).

The spelling of 105121141 in words is "one hundred five million, one hundred twenty-one thousand, one hundred forty-one".