141312221 has 8 divisors (see below), whose sum is σ = 144892800. Its totient is φ = 137755648.

The previous prime is 141312203. The next prime is 141312239. The reversal of 141312221 is 122213141.

It is an interprime number because it is at equal distance from previous prime (141312203) and next prime (141312239).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-141312221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 141312221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141312251) 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, 6230 + ... + 17928.

It is an arithmetic number, because the mean of its divisors is an integer number (18111600).

Almost surely, 2^141312221 is an apocalyptic number.

It is an amenable number.

141312221 is a deficient number, since it is larger than the sum of its proper divisors (3580579).

141312221 is a wasteful number, since it uses less digits than its factorization.

141312221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12003.

The product of its digits is 96, while the sum is 17.

The square root of 141312221 is about 11887.4816929407. The cubic root of 141312221 is about 520.8666772523.

Adding to 141312221 its reverse (122213141), we get a palindrome (263525362).

The spelling of 141312221 in words is "one hundred forty-one million, three hundred twelve thousand, two hundred twenty-one".