134256197 has 2 divisors, whose sum is σ = 134256198. Its totient is φ = 134256196.

The previous prime is 134256193. The next prime is 134256203. The reversal of 134256197 is 791652431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132733441 + 1522756 = 11521^2 + 1234^2 .

It is an emirp because it is prime and its reverse (791652431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134256197 - 2² = 134256193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134256197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134256193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67128098 + 67128099.

It is an arithmetic number, because the mean of its divisors is an integer number (67128099).

Almost surely, 2^134256197 is an apocalyptic number.

It is an amenable number.

134256197 is a deficient number, since it is larger than the sum of its proper divisors (1).

134256197 is an equidigital number, since it uses as much as digits as its factorization.

134256197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 38.

The square root of 134256197 is about 11586.8976434592. The cubic root of 134256197 is about 512.0489111904.

The spelling of 134256197 in words is "one hundred thirty-four million, two hundred fifty-six thousand, one hundred ninety-seven".