141643644 has 12 divisors (see below), whose sum is σ = 330501864. Its totient is φ = 47214544.

The previous prime is 141643639. The next prime is 141643657. The reversal of 141643644 is 446346141.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5901807 + ... + 5901830.

It is an arithmetic number, because the mean of its divisors is an integer number (27541822).

Almost surely, 2^141643644 is an apocalyptic number.

It is an amenable number.

141643644 is an abundant number, since it is smaller than the sum of its proper divisors (188858220).

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

141643644 is a wasteful number, since it uses less digits than its factorization.

141643644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11803644 (or 11803642 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

The square root of 141643644 is about 11901.4135294930. The cubic root of 141643644 is about 521.2735597699.

Adding to 141643644 its reverse (446346141), we get a palindrome (587989785).

The spelling of 141643644 in words is "one hundred forty-one million, six hundred forty-three thousand, six hundred forty-four".