31272107 has 2 divisors, whose sum is σ = 31272108. Its totient is φ = 31272106.

The previous prime is 31272103. The next prime is 31272133. The reversal of 31272107 is 70127213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31272107 - 2² = 31272103 is a prime.

It is not a weakly prime, because it can be changed into another prime (31272103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15636053 + 15636054.

It is an arithmetic number, because the mean of its divisors is an integer number (15636054).

Almost surely, 2^31272107 is an apocalyptic number.

31272107 is a deficient number, since it is larger than the sum of its proper divisors (1).

31272107 is an equidigital number, since it uses as much as digits as its factorization.

31272107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 31272107 is about 5592.1469043651. The cubic root of 31272107 is about 315.0545198317.

The spelling of 31272107 in words is "thirty-one million, two hundred seventy-two thousand, one hundred seven".