144521421154 has 32 divisors (see below), whose sum is σ = 239934545280. Its totient is φ = 64735507200.

The previous prime is 144521421131. The next prime is 144521421203. The reversal of 144521421154 is 451124125441.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3435802 + ... + 3477610.

It is an arithmetic number, because the mean of its divisors is an integer number (7497954540).

Almost surely, 2^144521421154 is an apocalyptic number.

144521421154 is a deficient number, since it is larger than the sum of its proper divisors (95413124126).

144521421154 is a wasteful number, since it uses less digits than its factorization.

144521421154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44106.

The product of its digits is 25600, while the sum is 34.

Adding to 144521421154 its reverse (451124125441), we get a palindrome (595645546595).

The spelling of 144521421154 in words is "one hundred forty-four billion, five hundred twenty-one million, four hundred twenty-one thousand, one hundred fifty-four".