720137241 has 12 divisors (see below), whose sum is σ = 1042053168. Its totient is φ = 479235384.

The previous prime is 720137237. The next prime is 720137263. The reversal of 720137241 is 142731027.

It is a happy number.

720137241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 720137241 - 2² = 720137237 is a prime.

It is not an unprimeable number, because it can be changed into a prime (720137441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65995 + ... + 76128.

It is an arithmetic number, because the mean of its divisors is an integer number (86837764).

Almost surely, 2^720137241 is an apocalyptic number.

It is an amenable number.

720137241 is a deficient number, since it is larger than the sum of its proper divisors (321915927).

720137241 is a wasteful number, since it uses less digits than its factorization.

720137241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142692 (or 142689 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 720137241 is about 26835.3729431883. The cubic root of 720137241 is about 896.3378931443.

Adding to 720137241 its reverse (142731027), we get a palindrome (862868268).

The spelling of 720137241 in words is "seven hundred twenty million, one hundred thirty-seven thousand, two hundred forty-one".