144042453531 has 24 divisors (see below), whose sum is σ = 208851701760. Its totient is φ = 95664110256.

The previous prime is 144042453523. The next prime is 144042453547. The reversal of 144042453531 is 135354240441.

144042453531 is a `hidden beast` number, since 1 + 4 + 40 + 42 + 45 + 3 + 531 = 666.

It is not a de Polignac number, because 144042453531 - 2³ = 144042453523 is a prime.

It is a super-2 number, since 2×144042453531² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144042453631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2936650 + ... + 2985296.

It is an arithmetic number, because the mean of its divisors is an integer number (8702154240).

Almost surely, 2^144042453531 is an apocalyptic number.

144042453531 is a deficient number, since it is larger than the sum of its proper divisors (64809248229).

144042453531 is a wasteful number, since it uses less digits than its factorization.

144042453531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49895 (or 49892 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 144042453531 its reverse (135354240441), we get a palindrome (279396693972).

The spelling of 144042453531 in words is "one hundred forty-four billion, forty-two million, four hundred fifty-three thousand, five hundred thirty-one".