134156257 has 2 divisors, whose sum is σ = 134156258. Its totient is φ = 134156256.

The previous prime is 134156249. The next prime is 134156327. The reversal of 134156257 is 752651431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113870241 + 20286016 = 10671^2 + 4504^2 .

It is a cyclic number.

It is not a de Polignac number, because 134156257 - 2³ = 134156249 is a prime.

It is not a weakly prime, because it can be changed into another prime (134156227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67078128 + 67078129.

It is an arithmetic number, because the mean of its divisors is an integer number (67078129).

Almost surely, 2^134156257 is an apocalyptic number.

It is an amenable number.

134156257 is a deficient number, since it is larger than the sum of its proper divisors (1).

134156257 is an equidigital number, since it uses as much as digits as its factorization.

134156257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 34.

The square root of 134156257 is about 11582.5842107882. The cubic root of 134156257 is about 511.9218236455.

The spelling of 134156257 in words is "one hundred thirty-four million, one hundred fifty-six thousand, two hundred fifty-seven".