144626505540631 has 4 divisors (see below), whose sum is σ = 144628757757792. Its totient is φ = 144624253323472.

The previous prime is 144626505540589. The next prime is 144626505540641. The reversal of 144626505540631 is 136045505626441.

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 144626505540631 - 2²⁹ = 144625968669719 is a prime.

It is a super-2 number, since 2×144626505540631² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144626505540641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1126012255 + ... + 1126140688.

It is an arithmetic number, because the mean of its divisors is an integer number (36157189439448).

Almost surely, 2^{144626505540631} is an apocalyptic number.

144626505540631 is a deficient number, since it is larger than the sum of its proper divisors (2252217161).

144626505540631 is an equidigital number, since it uses as much as digits as its factorization.

144626505540631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2252217160.

The product of its (nonzero) digits is 10368000, while the sum is 52.

The spelling of 144626505540631 in words is "one hundred forty-four trillion, six hundred twenty-six billion, five hundred five million, five hundred forty thousand, six hundred thirty-one".