141540728 has 64 divisors (see below), whose sum is σ = 321926400. Its totient is φ = 56989440.

The previous prime is 141540719. The next prime is 141540739. The reversal of 141540728 is 827045141.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 141540694 and 141540703.

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 15 ways as a sum of consecutive naturals, for example, 145283 + ... + 146253.

It is an arithmetic number, because the mean of its divisors is an integer number (5030100).

Almost surely, 2^141540728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 141540728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160963200).

141540728 is an abundant number, since it is smaller than the sum of its proper divisors (180385672).

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

141540728 is a wasteful number, since it uses less digits than its factorization.

141540728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140 (or 1136 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 141540728 is about 11897.0890557312. The cubic root of 141540728 is about 521.1472795112.

Adding to 141540728 its reverse (827045141), we get a palindrome (968585869).

The spelling of 141540728 in words is "one hundred forty-one million, five hundred forty thousand, seven hundred twenty-eight".