31427084147 has 2 divisors, whose sum is σ = 31427084148. Its totient is φ = 31427084146.

The previous prime is 31427084131. The next prime is 31427084167. The reversal of 31427084147 is 74148072413.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31427084147 - 2⁴ = 31427084131 is a prime.

It is not a weakly prime, because it can be changed into another prime (31427084107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15713542073 + 15713542074.

It is an arithmetic number, because the mean of its divisors is an integer number (15713542074).

Almost surely, 2^31427084147 is an apocalyptic number.

31427084147 is a deficient number, since it is larger than the sum of its proper divisors (1).

31427084147 is an equidigital number, since it uses as much as digits as its factorization.

31427084147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 150528, while the sum is 41.

The spelling of 31427084147 in words is "thirty-one billion, four hundred twenty-seven million, eighty-four thousand, one hundred forty-seven".