134199997 has 2 divisors, whose sum is σ = 134199998. Its totient is φ = 134199996.

The previous prime is 134199991. The next prime is 134200007. The reversal of 134199997 is 799991431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101183481 + 33016516 = 10059^2 + 5746^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134199997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134199991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67099998 + 67099999.

It is an arithmetic number, because the mean of its divisors is an integer number (67099999).

Almost surely, 2^134199997 is an apocalyptic number.

It is an amenable number.

134199997 is a deficient number, since it is larger than the sum of its proper divisors (1).

134199997 is an equidigital number, since it uses as much as digits as its factorization.

134199997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 551124, while the sum is 52.

The square root of 134199997 is about 11584.4722365760. The cubic root of 134199997 is about 511.9774528747.

The spelling of 134199997 in words is "one hundred thirty-four million, one hundred ninety-nine thousand, nine hundred ninety-seven".