144431134442 has 8 divisors (see below), whose sum is σ = 247596230496. Its totient is φ = 61899057612.

The previous prime is 144431134417. The next prime is 144431134447. The reversal of 144431134442 is 244431134441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (144431134447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5158254788 + ... + 5158254815.

It is an arithmetic number, because the mean of its divisors is an integer number (30949528812).

Almost surely, 2^144431134442 is an apocalyptic number.

144431134442 is a deficient number, since it is larger than the sum of its proper divisors (103165096054).

144431134442 is a wasteful number, since it uses less digits than its factorization.

144431134442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10316509612.

The product of its digits is 73728, while the sum is 35.

Adding to 144431134442 its reverse (244431134441), we get a palindrome (388862268883).

Subtracting 144431134442 from its reverse (244431134441), we obtain a palindrome (99999999999).

The spelling of 144431134442 in words is "one hundred forty-four billion, four hundred thirty-one million, one hundred thirty-four thousand, four hundred forty-two".