141021 has 10 divisors (see below), whose sum is σ = 210782. Its totient is φ = 93960.

The previous prime is 140989. The next prime is 141023. The reversal of 141021 is 120141.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 72900 + 68121 = 270^2 + 261^2 .

It is not a de Polignac number, because 141021 - 2⁵ = 140989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 140994 and 141012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141023) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 790 + ... + 951.

2¹⁴¹⁰²¹ is an apocalyptic number.

It is an amenable number.

141021 is a deficient number, since it is larger than the sum of its proper divisors (69761).

141021 is an equidigital number, since it uses as much as digits as its factorization.

141021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753 (or 1744 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 141021 is about 375.5276288105. The cubic root of 141021 is about 52.0508624628.

Adding to 141021 its reverse (120141), we get a palindrome (261162).

It can be divided in two parts, 1410 and 21, that added together give a triangular number (1431 = T₅₃).

The spelling of 141021 in words is "one hundred forty-one thousand, twenty-one", and thus it is an iban number.