144012541 has 4 divisors (see below), whose sum is σ = 147525084. Its totient is φ = 140500000.

The previous prime is 144012529. The next prime is 144012551. The reversal of 144012541 is 145210441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 145210441 = 43 ⋅3376987.

It can be written as a sum of positive squares in 2 ways, for example, as 85932900 + 58079641 = 9270^2 + 7621^2 .

It is a cyclic number.

It is not a de Polignac number, because 144012541 - 2⁵ = 144012509 is a prime.

It is a super-2 number, since 2×144012541² = 41479223930553362, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144012551) 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, 1756210 + ... + 1756291.

It is an arithmetic number, because the mean of its divisors is an integer number (36881271).

Almost surely, 2^144012541 is an apocalyptic number.

It is an amenable number.

144012541 is a deficient number, since it is larger than the sum of its proper divisors (3512543).

144012541 is an equidigital number, since it uses as much as digits as its factorization.

144012541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3512542.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 144012541 is about 12000.5225302901. The cubic root of 144012541 is about 524.1634944731.

Adding to 144012541 its reverse (145210441), we get a palindrome (289222982).

The spelling of 144012541 in words is "one hundred forty-four million, twelve thousand, five hundred forty-one".