141445 has 4 divisors (see below), whose sum is σ = 169740. Its totient is φ = 113152.

The previous prime is 141443. The next prime is 141461. The reversal of 141445 is 544141.

141445 is nontrivially palindromic in base 14.

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 98596 + 42849 = 314^2 + 207^2 .

It is a cyclic number.

It is not a de Polignac number, because 141445 - 2¹ = 141443 is a prime.

It is an Ulam number.

141445 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141443) 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, 14140 + ... + 14149.

It is an arithmetic number, because the mean of its divisors is an integer number (42435).

2¹⁴¹⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

141445 is a deficient number, since it is larger than the sum of its proper divisors (28295).

141445 is an equidigital number, since it uses as much as digits as its factorization.

141445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28294.

The product of its digits is 320, while the sum is 19.

The square root of 141445 is about 376.0917441264. The cubic root of 141445 is about 52.1029764130.

Adding to 141445 its reverse (544141), we get a palindrome (685586).

The spelling of 141445 in words is "one hundred forty-one thousand, four hundred forty-five".