144907571636 has 12 divisors (see below), whose sum is σ = 253592586660. Its totient is φ = 72452546880.

The previous prime is 144907571593. The next prime is 144907571647. The reversal of 144907571636 is 636175709441.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42392339236 + 102515232400 = 205894^2 + 320180^2 .

It is a congruent number.

It is an unprimeable number.

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, 15521 + ... + 538568.

It is an arithmetic number, because the mean of its divisors is an integer number (21132715555).

Almost surely, 2^144907571636 is an apocalyptic number.

It is an amenable number.

144907571636 is a deficient number, since it is larger than the sum of its proper divisors (108685015024).

144907571636 is a wasteful number, since it uses less digits than its factorization.

144907571636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619474 (or 619472 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 53.

The spelling of 144907571636 in words is "one hundred forty-four billion, nine hundred seven million, five hundred seventy-one thousand, six hundred thirty-six".