3721127133 has 4 divisors (see below), whose sum is σ = 4961502848. Its totient is φ = 2480751420.

The previous prime is 3721127117. The next prime is 3721127147. The reversal of 3721127133 is 3317211273.

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 not a de Polignac number, because 3721127133 - 2⁴ = 3721127117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3721127133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3721127153) 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, 620187853 + ... + 620187858.

It is an arithmetic number, because the mean of its divisors is an integer number (1240375712).

Almost surely, 2^3721127133 is an apocalyptic number.

It is an amenable number.

3721127133 is a deficient number, since it is larger than the sum of its proper divisors (1240375715).

3721127133 is a wasteful number, since it uses less digits than its factorization.

3721127133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240375714.

The product of its digits is 5292, while the sum is 30.

The square root of 3721127133 is about 61001.0420648697. The cubic root of 3721127133 is about 1549.6186551279.

The spelling of 3721127133 in words is "three billion, seven hundred twenty-one million, one hundred twenty-seven thousand, one hundred thirty-three".