144012531 has 16 divisors (see below), whose sum is σ = 207002880. Its totient is φ = 88530720.

The previous prime is 144012529. The next prime is 144012551. The reversal of 144012531 is 135210441.

It is not a de Polignac number, because 144012531 - 2¹ = 144012529 is a prime.

It is a super-2 number, since 2×144012531² = 41479218170051922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144012498 and 144012507.

It is not an unprimeable number, because it can be changed into a prime (144012551) 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, 69610 + ... + 71648.

It is an arithmetic number, because the mean of its divisors is an integer number (12937680).

Almost surely, 2^144012531 is an apocalyptic number.

144012531 is a deficient number, since it is larger than the sum of its proper divisors (62990349).

144012531 is a wasteful number, since it uses less digits than its factorization.

144012531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3866.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 144012531 is about 12000.5221136416. The cubic root of 144012531 is about 524.1634823408.

Adding to 144012531 its reverse (135210441), we get a palindrome (279222972).

The spelling of 144012531 in words is "one hundred forty-four million, twelve thousand, five hundred thirty-one".