154213135544 has 32 divisors (see below), whose sum is σ = 311424750000. Its totient is φ = 71167786752.

The previous prime is 154213135537. The next prime is 154213135603. The reversal of 154213135544 is 445531312451.

It is a junction number, because it is equal to n+sod(n) for n = 154213135498 and 154213135507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 981332 + ... + 1127580.

Almost surely, 2^154213135544 is an apocalyptic number.

It is an amenable number.

154213135544 is an abundant number, since it is smaller than the sum of its proper divisors (157211614456).

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

154213135544 is a wasteful number, since it uses less digits than its factorization.

154213135544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156407 (or 156403 counting only the distinct ones).

The product of its digits is 144000, while the sum is 38.

Adding to 154213135544 its reverse (445531312451), we get a palindrome (599744447995).

The spelling of 154213135544 in words is "one hundred fifty-four billion, two hundred thirteen million, one hundred thirty-five thousand, five hundred forty-four".