5131227 has 4 divisors (see below), whose sum is σ = 6841640. Its totient is φ = 3420816.

The previous prime is 5131223. The next prime is 5131237. The reversal of 5131227 is 7221315.

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

It is not a de Polignac number, because 5131227 - 2² = 5131223 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5131223) 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, 855202 + ... + 855207.

It is an arithmetic number, because the mean of its divisors is an integer number (1710410).

Almost surely, 2^5131227 is an apocalyptic number.

5131227 is a deficient number, since it is larger than the sum of its proper divisors (1710413).

5131227 is a wasteful number, since it uses less digits than its factorization.

5131227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1710412.

The product of its digits is 420, while the sum is 21.

The square root of 5131227 is about 2265.2211812536. The cubic root of 5131227 is about 172.4806615582.

Subtracting from 5131227 its sum of digits (21), we obtain a triangular number (5131206 = T₃₂₀₃).

The spelling of 5131227 in words is "five million, one hundred thirty-one thousand, two hundred twenty-seven".