5645286131 has 4 divisors (see below), whose sum is σ = 5839951200. Its totient is φ = 5450621064.

The previous prime is 5645286121. The next prime is 5645286133. The reversal of 5645286131 is 1316825465.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5645286131 is a prime.

It is a super-2 number, since 2×5645286131² = 63738511001721898322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5645286133) 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, 97332491 + ... + 97332548.

It is an arithmetic number, because the mean of its divisors is an integer number (1459987800).

Almost surely, 2^5645286131 is an apocalyptic number.

5645286131 is a deficient number, since it is larger than the sum of its proper divisors (194665069).

5645286131 is a wasteful number, since it uses less digits than its factorization.

5645286131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194665068.

The product of its digits is 172800, while the sum is 41.

The square root of 5645286131 is about 75135.1191587529. The cubic root of 5645286131 is about 1780.5820310802.

The spelling of 5645286131 in words is "five billion, six hundred forty-five million, two hundred eighty-six thousand, one hundred thirty-one".