144261541 has 4 divisors (see below), whose sum is σ = 152747532. Its totient is φ = 135775552.

The previous prime is 144261521. The next prime is 144261577. The reversal of 144261541 is 145162441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 145162441 = 193 ⋅752137.

It can be written as a sum of positive squares in 2 ways, for example, as 129276900 + 14984641 = 11370^2 + 3871^2 .

It is a cyclic number.

It is not a de Polignac number, because 144261541 - 2²¹ = 142164389 is a prime.

It is a super-2 number, since 2×144261541² = 41622784423389362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144261511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4242970 + ... + 4243003.

It is an arithmetic number, because the mean of its divisors is an integer number (38186883).

Almost surely, 2^144261541 is an apocalyptic number.

It is an amenable number.

144261541 is a deficient number, since it is larger than the sum of its proper divisors (8485991).

144261541 is an equidigital number, since it uses as much as digits as its factorization.

144261541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8485990.

The product of its digits is 3840, while the sum is 28.

The square root of 144261541 is about 12010.8925979712. The cubic root of 144261541 is about 524.4654162353.

The spelling of 144261541 in words is "one hundred forty-four million, two hundred sixty-one thousand, five hundred forty-one".