141821340 has 48 divisors (see below), whose sum is σ = 403620000. Its totient is φ = 37198080.

The previous prime is 141821299. The next prime is 141821357. The reversal of 141821340 is 43128141.

It is a super-2 number, since 2×141821340² = 40226584958791200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 141821340.

It is a congruent number.

It is an unprimeable number.

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, 15715 + ... + 23034.

It is an arithmetic number, because the mean of its divisors is an integer number (8408750).

Almost surely, 2^141821340 is an apocalyptic number.

141821340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

141821340 is an abundant number, since it is smaller than the sum of its proper divisors (261798660).

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

141821340 is a wasteful number, since it uses less digits than its factorization.

141821340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38822 (or 38820 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 141821340 is about 11908.8765213180. The cubic root of 141821340 is about 521.4914528710.

Adding to 141821340 its reverse (43128141), we get a palindrome (184949481).

The spelling of 141821340 in words is "one hundred forty-one million, eight hundred twenty-one thousand, three hundred forty".