144446542 has 4 divisors (see below), whose sum is σ = 216669816. Its totient is φ = 72223270.

The previous prime is 144446537. The next prime is 144446543. The reversal of 144446542 is 245644441.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 144446498 and 144446507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144446543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36111634 + ... + 36111637.

It is an arithmetic number, because the mean of its divisors is an integer number (54167454).

Almost surely, 2^144446542 is an apocalyptic number.

144446542 is a deficient number, since it is larger than the sum of its proper divisors (72223274).

144446542 is an equidigital number, since it uses as much as digits as its factorization.

144446542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72223273.

The product of its digits is 61440, while the sum is 34.

The square root of 144446542 is about 12018.5915148157. The cubic root of 144446542 is about 524.6895119522.

The spelling of 144446542 in words is "one hundred forty-four million, four hundred forty-six thousand, five hundred forty-two".