141221518 has 16 divisors (see below), whose sum is σ = 222665760. Its totient is φ = 67044736.

The previous prime is 141221501. The next prime is 141221519. The reversal of 141221518 is 815122141.

It is a junction number, because it is equal to n+sod(n) for n = 141221492 and 141221501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141221519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4903 + ... + 17506.

It is an arithmetic number, because the mean of its divisors is an integer number (13916610).

Almost surely, 2^141221518 is an apocalyptic number.

141221518 is a deficient number, since it is larger than the sum of its proper divisors (81444242).

141221518 is a wasteful number, since it uses less digits than its factorization.

141221518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22571.

The product of its digits is 640, while the sum is 25.

The square root of 141221518 is about 11883.6660168485. Note that the first 3 decimals coincide. The cubic root of 141221518 is about 520.7552118235.

Adding to 141221518 its reverse (815122141), we get a palindrome (956343659).

The spelling of 141221518 in words is "one hundred forty-one million, two hundred twenty-one thousand, five hundred eighteen".