141421646 has 8 divisors (see below), whose sum is σ = 212349504. Its totient is φ = 70638480.

The previous prime is 141421627. The next prime is 141421663. The reversal of 141421646 is 646124141.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×141421646³ (a number of 25 digits) contains 333 as substring.

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, 33695 + ... + 37658.

It is an arithmetic number, because the mean of its divisors is an integer number (26543688).

Almost surely, 2^141421646 is an apocalyptic number.

141421646 is a deficient number, since it is larger than the sum of its proper divisors (70927858).

141421646 is an equidigital number, since it uses as much as digits as its factorization.

141421646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72346.

The product of its digits is 4608, while the sum is 29.

The square root of 141421646 is about 11892.0833330414. The cubic root of 141421646 is about 521.0010867901.

Adding to 141421646 its reverse (646124141), we get a palindrome (787545787).

The spelling of 141421646 in words is "one hundred forty-one million, four hundred twenty-one thousand, six hundred forty-six".