144047434 has 4 divisors (see below), whose sum is σ = 216071154. Its totient is φ = 72023716.

The previous prime is 144047399. The next prime is 144047461. The reversal of 144047434 is 434740441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434740441 = 6547 ⋅66403.

It can be written as a sum of positive squares in only one way, i.e., 108680625 + 35366809 = 10425^2 + 5947^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 144047396 and 144047405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36011857 + ... + 36011860.

Almost surely, 2^144047434 is an apocalyptic number.

144047434 is a deficient number, since it is larger than the sum of its proper divisors (72023720).

144047434 is an equidigital number, since it uses as much as digits as its factorization.

144047434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72023719.

The product of its (nonzero) digits is 21504, while the sum is 31.

The square root of 144047434 is about 12001.9762539342. The cubic root of 144047434 is about 524.2058244900.

Adding to 144047434 its reverse (434740441), we get a palindrome (578787875).

The spelling of 144047434 in words is "one hundred forty-four million, forty-seven thousand, four hundred thirty-four".