134309971 has 2 divisors, whose sum is σ = 134309972. Its totient is φ = 134309970.

The previous prime is 134309969. The next prime is 134310053. The reversal of 134309971 is 179903431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134309971 - 2¹ = 134309969 is a prime.

Together with 134309969, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 134309971.

It is not a weakly prime, because it can be changed into another prime (134309951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67154985 + 67154986.

It is an arithmetic number, because the mean of its divisors is an integer number (67154986).

Almost surely, 2^134309971 is an apocalyptic number.

134309971 is a deficient number, since it is larger than the sum of its proper divisors (1).

134309971 is an equidigital number, since it uses as much as digits as its factorization.

134309971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 134309971 is about 11589.2178769751. The cubic root of 134309971 is about 512.1172661798.

The spelling of 134309971 in words is "one hundred thirty-four million, three hundred nine thousand, nine hundred seventy-one".