144521561136 has 40 divisors (see below), whose sum is σ = 373408709440. Its totient is φ = 48165938496.

The previous prime is 144521561099. The next prime is 144521561201. The reversal of 144521561136 is 631165125441.

It is a super-2 number, since 2×144521561136² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144521561094 and 144521561103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51555 + ... + 540093.

It is an arithmetic number, because the mean of its divisors is an integer number (9335217736).

Almost surely, 2^144521561136 is an apocalyptic number.

144521561136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

144521561136 is an abundant number, since it is smaller than the sum of its proper divisors (228887148304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144521561136 is a wasteful number, since it uses less digits than its factorization.

144521561136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494713 (or 494707 counting only the distinct ones).

The product of its digits is 86400, while the sum is 39.

Adding to 144521561136 its reverse (631165125441), we get a palindrome (775686686577).

The spelling of 144521561136 in words is "one hundred forty-four billion, five hundred twenty-one million, five hundred sixty-one thousand, one hundred thirty-six".