144541531 has 16 divisors (see below), whose sum is σ = 161580960. Its totient is φ = 128494080.

The previous prime is 144541517. The next prime is 144541559. The reversal of 144541531 is 135145441.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144541531 is a prime.

It is a super-2 number, since 2×144541531² = 41784508367647922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144541531.

It is not an unprimeable number, because it can be changed into a prime (144541231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213165 + ... + 213841.

It is an arithmetic number, because the mean of its divisors is an integer number (10098810).

Almost surely, 2^144541531 is an apocalyptic number.

144541531 is a deficient number, since it is larger than the sum of its proper divisors (17039429).

144541531 is a wasteful number, since it uses less digits than its factorization.

144541531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374.

The product of its digits is 4800, while the sum is 28.

The square root of 144541531 is about 12022.5426179324. The cubic root of 144541531 is about 524.8044998464.

Adding to 144541531 its reverse (135145441), we get a palindrome (279686972).

The spelling of 144541531 in words is "one hundred forty-four million, five hundred forty-one thousand, five hundred thirty-one".