144521141 has 4 divisors (see below), whose sum is σ = 144712812. Its totient is φ = 144329472.

The previous prime is 144521129. The next prime is 144521147. The reversal of 144521141 is 141125441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 141125441 = 43 ⋅3281987.

It can be written as a sum of positive squares in 2 ways, for example, as 71487025 + 73034116 = 8455^2 + 8546^2 .

It is a cyclic number.

It is not a de Polignac number, because 144521141 - 2¹⁴ = 144504757 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 (144521147) 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, 94700 + ... + 96213.

It is an arithmetic number, because the mean of its divisors is an integer number (36178203).

Almost surely, 2^144521141 is an apocalyptic number.

It is an amenable number.

144521141 is a deficient number, since it is larger than the sum of its proper divisors (191671).

144521141 is an equidigital number, since it uses as much as digits as its factorization.

144521141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191670.

The product of its digits is 640, while the sum is 23.

The square root of 144521141 is about 12021.6945976846. The cubic root of 144521141 is about 524.7798212024.

Adding to 144521141 its reverse (141125441), we get a palindrome (285646582).

The spelling of 144521141 in words is "one hundred forty-four million, five hundred twenty-one thousand, one hundred forty-one".