144612737531 has 2 divisors, whose sum is σ = 144612737532. Its totient is φ = 144612737530.

The previous prime is 144612737519. The next prime is 144612737593. The reversal of 144612737531 is 135737216441.

It is a weak prime.

It is an emirp because it is prime and its reverse (135737216441) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144612737531 is a prime.

It is a super-2 number, since 2×144612737531² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (144612737831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72306368765 + 72306368766.

It is an arithmetic number, because the mean of its divisors is an integer number (72306368766).

Almost surely, 2^144612737531 is an apocalyptic number.

144612737531 is a deficient number, since it is larger than the sum of its proper divisors (1).

144612737531 is an equidigital number, since it uses as much as digits as its factorization.

144612737531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 44.

The spelling of 144612737531 in words is "one hundred forty-four billion, six hundred twelve million, seven hundred thirty-seven thousand, five hundred thirty-one".