141720791 has 4 divisors (see below), whose sum is σ = 149179800. Its totient is φ = 134261784.

The previous prime is 141720769. The next prime is 141720793. The reversal of 141720791 is 197027141.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-141720791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141720793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3729476 + ... + 3729513.

It is an arithmetic number, because the mean of its divisors is an integer number (37294950).

Almost surely, 2^141720791 is an apocalyptic number.

141720791 is a deficient number, since it is larger than the sum of its proper divisors (7459009).

141720791 is an equidigital number, since it uses as much as digits as its factorization.

141720791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7459008.

The product of its (nonzero) digits is 3528, while the sum is 32.

The square root of 141720791 is about 11904.6541738935. The cubic root of 141720791 is about 521.3681807764.

The spelling of 141720791 in words is "one hundred forty-one million, seven hundred twenty thousand, seven hundred ninety-one".