144731696987 has 2 divisors, whose sum is σ = 144731696988. Its totient is φ = 144731696986.

The previous prime is 144731696953. The next prime is 144731697037. The reversal of 144731696987 is 789696137441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144731696987 - 2¹⁰ = 144731695963 is a prime.

It is a super-2 number, since 2×144731696987² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (144731696287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72365848493 + 72365848494.

It is an arithmetic number, because the mean of its divisors is an integer number (72365848494).

Almost surely, 2^144731696987 is an apocalyptic number.

144731696987 is a deficient number, since it is larger than the sum of its proper divisors (1).

144731696987 is an equidigital number, since it uses as much as digits as its factorization.

144731696987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54867456, while the sum is 65.

The spelling of 144731696987 in words is "one hundred forty-four billion, seven hundred thirty-one million, six hundred ninety-six thousand, nine hundred eighty-seven".