144456531 has 16 divisors (see below), whose sum is σ = 205553664. Its totient is φ = 89921664.

The previous prime is 144456517. The next prime is 144456539. The reversal of 144456531 is 135654441.

144456531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144456531 - 2⁹ = 144456019 is a prime.

It is a super-2 number, since 2×144456531² = 41735378697107922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144456492 and 144456501.

It is not an unprimeable number, because it can be changed into a prime (144456539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4675 + ... + 17628.

It is an arithmetic number, because the mean of its divisors is an integer number (12847104).

Almost surely, 2^144456531 is an apocalyptic number.

144456531 is a deficient number, since it is larger than the sum of its proper divisors (61097133).

144456531 is a wasteful number, since it uses less digits than its factorization.

144456531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22450.

The product of its digits is 28800, while the sum is 33.

The square root of 144456531 is about 12019.0070721337. The cubic root of 144456531 is about 524.7016063982.

It can be divided in two parts, 1444 and 56531, that added together give a palindrome (57975).

The spelling of 144456531 in words is "one hundred forty-four million, four hundred fifty-six thousand, five hundred thirty-one".