144636631427 has 4 divisors (see below), whose sum is σ = 144832351560. Its totient is φ = 144440911296.

The previous prime is 144636631417. The next prime is 144636631471. The reversal of 144636631427 is 724136636441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144636631427 - 2¹⁶ = 144636565891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144636631417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97858958 + ... + 97860435.

It is an arithmetic number, because the mean of its divisors is an integer number (36208087890).

Almost surely, 2^144636631427 is an apocalyptic number.

144636631427 is a deficient number, since it is larger than the sum of its proper divisors (195720133).

144636631427 is an equidigital number, since it uses as much as digits as its factorization.

144636631427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195720132.

The product of its digits is 1741824, while the sum is 47.

The spelling of 144636631427 in words is "one hundred forty-four billion, six hundred thirty-six million, six hundred thirty-one thousand, four hundred twenty-seven".