144288842 has 4 divisors (see below), whose sum is σ = 216433266. Its totient is φ = 72144420.

The previous prime is 144288829. The next prime is 144288853. The reversal of 144288842 is 248882441.

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

It can be written as a sum of positive squares in only one way, i.e., 89661961 + 54626881 = 9469^2 + 7391^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 144288842.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36072209 + ... + 36072212.

Almost surely, 2^144288842 is an apocalyptic number.

144288842 is a deficient number, since it is larger than the sum of its proper divisors (72144424).

144288842 is an equidigital number, since it uses as much as digits as its factorization.

144288842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72144423.

The product of its digits is 131072, while the sum is 41.

The square root of 144288842 is about 12012.0290542439. The cubic root of 144288842 is about 524.4984985733.

The spelling of 144288842 in words is "one hundred forty-four million, two hundred eighty-eight thousand, eight hundred forty-two".