720001133 has 4 divisors (see below), whose sum is σ = 743227008. Its totient is φ = 696775260.

The previous prime is 720001129. The next prime is 720001151. The reversal of 720001133 is 331100027.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 720001133 - 2² = 720001129 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 (720001433) 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, 11612891 + ... + 11612952.

It is an arithmetic number, because the mean of its divisors is an integer number (185806752).

Almost surely, 2^720001133 is an apocalyptic number.

It is an amenable number.

720001133 is a deficient number, since it is larger than the sum of its proper divisors (23225875).

720001133 is a wasteful number, since it uses less digits than its factorization.

720001133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23225874.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 720001133 is about 26832.8368421977. The cubic root of 720001133 is about 896.2814194437.

The spelling of 720001133 in words is "seven hundred twenty million, one thousand, one hundred thirty-three".