141540820 has 12 divisors (see below), whose sum is σ = 297235764. Its totient is φ = 56616320.

The previous prime is 141540811. The next prime is 141540869. The reversal of 141540820 is 28045141.

It can be written as a sum of positive squares in 2 ways, for example, as 44675856 + 96864964 = 6684^2 + 9842^2 .

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 3 ways as a sum of consecutive naturals, for example, 3538501 + ... + 3538540.

It is an arithmetic number, because the mean of its divisors is an integer number (24769647).

Almost surely, 2^141540820 is an apocalyptic number.

141540820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

141540820 is an abundant number, since it is smaller than the sum of its proper divisors (155694944).

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

141540820 is a wasteful number, since it uses less digits than its factorization.

141540820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7077050 (or 7077048 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 141540820 is about 11897.0929222226. The cubic root of 141540820 is about 521.1473924246.

Adding to 141540820 its reverse (28045141), we get a palindrome (169585961).

The spelling of 141540820 in words is "one hundred forty-one million, five hundred forty thousand, eight hundred twenty".