141397728 has 24 divisors (see below), whose sum is σ = 371169288. Its totient is φ = 47132544.

The previous prime is 141397723. The next prime is 141397741. The reversal of 141397728 is 827793141.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 141397728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141397723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 736351 + ... + 736542.

It is an arithmetic number, because the mean of its divisors is an integer number (15465387).

Almost surely, 2^141397728 is an apocalyptic number.

It is an amenable number.

141397728 is an abundant number, since it is smaller than the sum of its proper divisors (229771560).

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

141397728 is a wasteful number, since it uses less digits than its factorization.

141397728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472906 (or 1472898 counting only the distinct ones).

The product of its digits is 84672, while the sum is 42.

The square root of 141397728 is about 11891.0776635257. The cubic root of 141397728 is about 520.9717136191.

The spelling of 141397728 in words is "one hundred forty-one million, three hundred ninety-seven thousand, seven hundred twenty-eight".