5721137 has 4 divisors (see below), whose sum is σ = 5756400. Its totient is φ = 5685876.

The previous prime is 5721127. The next prime is 5721139. The reversal of 5721137 is 7311275.

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 5721137 - 2²⁰ = 4672561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5721139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17387 + ... + 17712.

It is an arithmetic number, because the mean of its divisors is an integer number (1439100).

Almost surely, 2^5721137 is an apocalyptic number.

It is an amenable number.

5721137 is a deficient number, since it is larger than the sum of its proper divisors (35263).

5721137 is a wasteful number, since it uses less digits than its factorization.

5721137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35262.

The product of its digits is 1470, while the sum is 26.

The square root of 5721137 is about 2391.8898386004. The cubic root of 5721137 is about 178.8521296817.

The spelling of 5721137 in words is "five million, seven hundred twenty-one thousand, one hundred thirty-seven".