141711721 has 8 divisors (see below), whose sum is σ = 144944640. Its totient is φ = 138487968.

The previous prime is 141711697. The next prime is 141711749. The reversal of 141711721 is 127117141.

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

It is a cyclic number.

It is not a de Polignac number, because 141711721 - 2⁹ = 141711209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141711421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36160 + ... + 39886.

It is an arithmetic number, because the mean of its divisors is an integer number (18118080).

Almost surely, 2^141711721 is an apocalyptic number.

It is an amenable number.

141711721 is a deficient number, since it is larger than the sum of its proper divisors (3232919).

141711721 is an equidigital number, since it uses as much as digits as its factorization.

141711721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4583.

The product of its digits is 392, while the sum is 25.

The square root of 141711721 is about 11904.2732243510. The cubic root of 141711721 is about 521.3570581781.

Adding to 141711721 its reverse (127117141), we get a palindrome (268828862).

The spelling of 141711721 in words is "one hundred forty-one million, seven hundred eleven thousand, seven hundred twenty-one".