141820140 has 96 divisors (see below), whose sum is σ = 495097344. Its totient is φ = 29468160.

The previous prime is 141820117. The next prime is 141820201. The reversal of 141820140 is 41028141.

It is a happy number.

It is a super-2 number, since 2×141820140² = 40225904219239200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10729 + ... + 19968.

It is an arithmetic number, because the mean of its divisors is an integer number (5157264).

Almost surely, 2^141820140 is an apocalyptic number.

141820140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

141820140 is an abundant number, since it is smaller than the sum of its proper divisors (353277204).

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

141820140 is a wasteful number, since it uses less digits than its factorization.

141820140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30727 (or 30725 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 141820140 is about 11908.8261386251. The cubic root of 141820140 is about 521.4899820263.

Adding to 141820140 its reverse (41028141), we get a palindrome (182848281).

The spelling of 141820140 in words is "one hundred forty-one million, eight hundred twenty thousand, one hundred forty".