144434531 has 4 divisors (see below), whose sum is σ = 145836912. Its totient is φ = 143032152.

The previous prime is 144434509. The next prime is 144434551. The reversal of 144434531 is 135434441.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 144434531 - 2¹⁰ = 144433507 is a prime.

It is a super-2 number, since 2×144434531² = 41722667490379922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144434494 and 144434503.

It is not an unprimeable number, because it can be changed into a prime (144434551) 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, 701036 + ... + 701241.

It is an arithmetic number, because the mean of its divisors is an integer number (36459228).

Almost surely, 2^144434531 is an apocalyptic number.

144434531 is a deficient number, since it is larger than the sum of its proper divisors (1402381).

144434531 is a wasteful number, since it uses less digits than its factorization.

144434531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402380.

The product of its digits is 11520, while the sum is 29.

The square root of 144434531 is about 12018.0918202517. The cubic root of 144434531 is about 524.6749685778.

Adding to 144434531 its reverse (135434441), we get a palindrome (279868972).

The spelling of 144434531 in words is "one hundred forty-four million, four hundred thirty-four thousand, five hundred thirty-one".