154043431040 has 128 divisors (see below), whose sum is σ = 385709817600. Its totient is φ = 58717745152.

The previous prime is 154043430997. The next prime is 154043431093. The reversal of 154043431040 is 40134340451.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 154043430994 and 154043431012.

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 15 ways as a sum of consecutive naturals, for example, 3940229 + ... + 3979131.

It is an arithmetic number, because the mean of its divisors is an integer number (3013357950).

Almost surely, 2^154043431040 is an apocalyptic number.

154043431040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154043431040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192854908800).

154043431040 is an abundant number, since it is smaller than the sum of its proper divisors (231666386560).

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

154043431040 is a wasteful number, since it uses less digits than its factorization.

154043431040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39214 (or 39202 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 154043431040 its reverse (40134340451), we get a palindrome (194177771491).

The spelling of 154043431040 in words is "one hundred fifty-four billion, forty-three million, four hundred thirty-one thousand, forty".