141021145 has 4 divisors (see below), whose sum is σ = 169225380. Its totient is φ = 112816912.

The previous prime is 141021109. The next prime is 141021161. The reversal of 141021145 is 541120141.

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 106069401 + 34951744 = 10299^2 + 5912^2 .

It is a cyclic number.

It is not a de Polignac number, because 141021145 - 2²³ = 132632537 is a prime.

It is a super-2 number, since 2×141021145² = 39773926674222050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14102110 + ... + 14102119.

It is an arithmetic number, because the mean of its divisors is an integer number (42306345).

Almost surely, 2^141021145 is an apocalyptic number.

It is an amenable number.

141021145 is a deficient number, since it is larger than the sum of its proper divisors (28204235).

141021145 is an equidigital number, since it uses as much as digits as its factorization.

141021145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28204234.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 141021145 is about 11875.2324187782. The cubic root of 141021145 is about 520.5088030260.

Adding to 141021145 its reverse (541120141), we get a palindrome (682141286).

The spelling of 141021145 in words is "one hundred forty-one million, twenty-one thousand, one hundred forty-five".