141381840 has 80 divisors (see below), whose sum is σ = 443275200. Its totient is φ = 37272576.

The previous prime is 141381811. The next prime is 141381841. The reversal of 141381840 is 48183141.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 141381798 and 141381807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141381841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18051 + ... + 24669.

It is an arithmetic number, because the mean of its divisors is an integer number (5540940).

Almost surely, 2^141381840 is an apocalyptic number.

141381840 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 141381840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221637600).

141381840 is an abundant number, since it is smaller than the sum of its proper divisors (301893360).

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

141381840 is a wasteful number, since it uses less digits than its factorization.

141381840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6724 (or 6718 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 141381840 is about 11890.4095808345. The cubic root of 141381840 is about 520.9522000839.

The spelling of 141381840 in words is "one hundred forty-one million, three hundred eighty-one thousand, eight hundred forty".