31340227 has 2 divisors, whose sum is σ = 31340228. Its totient is φ = 31340226.

The previous prime is 31340209. The next prime is 31340233. The reversal of 31340227 is 72204313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31340227 - 2²³ = 22951619 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 31340198 and 31340207.

It is not a weakly prime, because it can be changed into another prime (31340207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15670113 + 15670114.

It is an arithmetic number, because the mean of its divisors is an integer number (15670114).

Almost surely, 2^31340227 is an apocalyptic number.

31340227 is a deficient number, since it is larger than the sum of its proper divisors (1).

31340227 is an equidigital number, since it uses as much as digits as its factorization.

31340227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 31340227 is about 5598.2342751979. The cubic root of 31340227 is about 315.2831149130.

The spelling of 31340227 in words is "thirty-one million, three hundred forty thousand, two hundred twenty-seven".