131765227 has 4 divisors (see below), whose sum is σ = 143743896. Its totient is φ = 119786560.

The previous prime is 131765213. The next prime is 131765237. The reversal of 131765227 is 722567131.

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 131765227 - 2⁷ = 131765099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131765192 and 131765201.

It is not an unprimeable number, because it can be changed into a prime (131765237) 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, 5989318 + ... + 5989339.

It is an arithmetic number, because the mean of its divisors is an integer number (35935974).

Almost surely, 2^131765227 is an apocalyptic number.

131765227 is a deficient number, since it is larger than the sum of its proper divisors (11978669).

131765227 is a wasteful number, since it uses less digits than its factorization.

131765227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11978668.

The product of its digits is 17640, while the sum is 34.

The square root of 131765227 is about 11478.9035626230. The cubic root of 131765227 is about 508.8622940911.

The spelling of 131765227 in words is "one hundred thirty-one million, seven hundred sixty-five thousand, two hundred twenty-seven".