141621 has 4 divisors (see below), whose sum is σ = 188832. Its totient is φ = 94412.

The previous prime is 141619. The next prime is 141623. The reversal of 141621 is 126141.

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.

It is an interprime number because it is at equal distance from previous prime (141619) and next prime (141623).

It is a cyclic number.

It is not a de Polignac number, because 141621 - 2¹ = 141619 is a prime.

It is an Ulam number.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 141621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141623) 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, 23601 + ... + 23606.

It is an arithmetic number, because the mean of its divisors is an integer number (47208).

2¹⁴¹⁶²¹ is an apocalyptic number.

It is an amenable number.

141621 is a deficient number, since it is larger than the sum of its proper divisors (47211).

141621 is an equidigital number, since it uses as much as digits as its factorization.

141621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47210.

The product of its digits is 48, while the sum is 15.

The square root of 141621 is about 376.3256568452. The cubic root of 141621 is about 52.1245780320.

Adding to 141621 its reverse (126141), we get a palindrome (267762).

The spelling of 141621 in words is "one hundred forty-one thousand, six hundred twenty-one".