724700131 has 4 divisors (see below), whose sum is σ = 726788952. Its totient is φ = 722611312.

The previous prime is 724700129. The next prime is 724700143. The reversal of 724700131 is 131007427.

It is a happy number.

724700131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 724700131 - 2¹ = 724700129 is a prime.

It is a super-2 number, since 2×724700131² = 1050380559742834322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 724700096 and 724700105.

It is not an unprimeable number, because it can be changed into a prime (724700231) 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, 1043890 + ... + 1044583.

It is an arithmetic number, because the mean of its divisors is an integer number (181697238).

Almost surely, 2^724700131 is an apocalyptic number.

724700131 is a deficient number, since it is larger than the sum of its proper divisors (2088821).

724700131 is a wasteful number, since it uses less digits than its factorization.

724700131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088820.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 724700131 is about 26920.2550322243. The cubic root of 724700131 is about 898.2270161315.

Adding to 724700131 its reverse (131007427), we get a palindrome (855707558).

The spelling of 724700131 in words is "seven hundred twenty-four million, seven hundred thousand, one hundred thirty-one".