141421644 has 144 divisors (see below), whose sum is σ = 449467200. Its totient is φ = 37255680.

The previous prime is 141421627. The next prime is 141421663. The reversal of 141421644 is 446124141.

141421644 is a `hidden beast` number, since 1 + 4 + 14 + 2 + 1 + 644 = 666.

141421644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×141421644³ (a number of 25 digits) contains 333 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 160084 + ... + 160964.

It is an arithmetic number, because the mean of its divisors is an integer number (3121300).

Almost surely, 2^141421644 is an apocalyptic number.

141421644 is a gapful number since it is divisible by the number (14) 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 141421644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224733600).

141421644 is an abundant number, since it is smaller than the sum of its proper divisors (308045556).

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

141421644 is a wasteful number, since it uses less digits than its factorization.

141421644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925 (or 906 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 141421644 is about 11892.0832489518. The cubic root of 141421644 is about 521.0010843341.

Adding to 141421644 its reverse (446124141), we get a palindrome (587545785).

The spelling of 141421644 in words is "one hundred forty-one million, four hundred twenty-one thousand, six hundred forty-four".