141244021 has 4 divisors (see below), whose sum is σ = 143032000. Its totient is φ = 139456044.

The previous prime is 141244013. The next prime is 141244027. The reversal of 141244021 is 120442141.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 120442141 = 37 ⋅3255193.

It is a cyclic number.

It is not a de Polignac number, because 141244021 - 2³ = 141244013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 141244021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141244027) 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, 893871 + ... + 894028.

It is an arithmetic number, because the mean of its divisors is an integer number (35758000).

Almost surely, 2^141244021 is an apocalyptic number.

It is an amenable number.

141244021 is a deficient number, since it is larger than the sum of its proper divisors (1787979).

141244021 is an equidigital number, since it uses as much as digits as its factorization.

141244021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787978.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 141244021 is about 11884.6127829223. The cubic root of 141244021 is about 520.7828703379.

Adding to 141244021 its reverse (120442141), we get a palindrome (261686162).

It can be divided in two parts, 14124 and 4021, that added together give a triangular number (18145 = T₁₉₀).

The spelling of 141244021 in words is "one hundred forty-one million, two hundred forty-four thousand, twenty-one".