144133115421 has 16 divisors (see below), whose sum is σ = 192551748480. Its totient is φ = 95901758400.

The previous prime is 144133115419. The next prime is 144133115453. The reversal of 144133115421 is 124511331441.

It is a happy number.

It is not a de Polignac number, because 144133115421 - 2¹ = 144133115419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144133115461) 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, 4271211 + ... + 4304823.

It is an arithmetic number, because the mean of its divisors is an integer number (12034484280).

Almost surely, 2^144133115421 is an apocalyptic number.

It is an amenable number.

144133115421 is a deficient number, since it is larger than the sum of its proper divisors (48418633059).

144133115421 is a wasteful number, since it uses less digits than its factorization.

144133115421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36356.

The product of its digits is 5760, while the sum is 30.

Adding to 144133115421 its reverse (124511331441), we get a palindrome (268644446862).

The spelling of 144133115421 in words is "one hundred forty-four billion, one hundred thirty-three million, one hundred fifteen thousand, four hundred twenty-one".