141021005 has 4 divisors (see below), whose sum is σ = 169225212. Its totient is φ = 112816800.

The previous prime is 141020989. The next prime is 141021007. The reversal of 141021005 is 500120141.

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 67798756 + 73222249 = 8234^2 + 8557^2 .

It is not a de Polignac number, because 141021005 - 2⁴ = 141020989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141021007) 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, 14102096 + ... + 14102105.

It is an arithmetic number, because the mean of its divisors is an integer number (42306303).

Almost surely, 2^141021005 is an apocalyptic number.

It is an amenable number.

141021005 is a deficient number, since it is larger than the sum of its proper divisors (28204207).

141021005 is an equidigital number, since it uses as much as digits as its factorization.

141021005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28204206.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 141021005 is about 11875.2265241552. The cubic root of 141021005 is about 520.5086307793.

Adding to 141021005 its reverse (500120141), we get a palindrome (641141146).

The spelling of 141021005 in words is "one hundred forty-one million, twenty-one thousand, five".