144040542121 has 16 divisors (see below), whose sum is σ = 164987412480. Its totient is φ = 123186364560.

The previous prime is 144040542043. The next prime is 144040542161. The reversal of 144040542121 is 121245040441.

It is a happy number.

It is not a de Polignac number, because 144040542121 - 2⁷ = 144040541993 is a prime.

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 144040542121.

It is not an unprimeable number, because it can be changed into a prime (144040542161) 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, 6775110 + ... + 6796336.

It is an arithmetic number, because the mean of its divisors is an integer number (10311713280).

Almost surely, 2^144040542121 is an apocalyptic number.

It is an amenable number.

144040542121 is a deficient number, since it is larger than the sum of its proper divisors (20946870359).

144040542121 is a wasteful number, since it uses less digits than its factorization.

144040542121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23364.

The product of its (nonzero) digits is 5120, while the sum is 28.

Adding to 144040542121 its reverse (121245040441), we get a palindrome (265285582562).

The spelling of 144040542121 in words is "one hundred forty-four billion, forty million, five hundred forty-two thousand, one hundred twenty-one".