144612113531 has 8 divisors (see below), whose sum is σ = 150965004960. Its totient is φ = 138264672832.

The previous prime is 144612113509. The next prime is 144612113567. The reversal of 144612113531 is 135311216441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144612113531 - 2⁶ = 144612113467 is a prime.

It is a super-2 number, since 2×144612113531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144612113731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1308410 + ... + 1414623.

It is an arithmetic number, because the mean of its divisors is an integer number (18870625620).

Almost surely, 2^144612113531 is an apocalyptic number.

144612113531 is a deficient number, since it is larger than the sum of its proper divisors (6352891429).

144612113531 is a wasteful number, since it uses less digits than its factorization.

144612113531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2725365.

The product of its digits is 8640, while the sum is 32.

Adding to 144612113531 its reverse (135311216441), we get a palindrome (279923329972).

The spelling of 144612113531 in words is "one hundred forty-four billion, six hundred twelve million, one hundred thirteen thousand, five hundred thirty-one".