134640277 has 2 divisors, whose sum is σ = 134640278. Its totient is φ = 134640276.

The previous prime is 134640271. The next prime is 134640281. The reversal of 134640277 is 772046431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105144516 + 29495761 = 10254^2 + 5431^2 .

It is a cyclic number.

It is not a de Polignac number, because 134640277 - 2¹⁵ = 134607509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134640271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67320138 + 67320139.

It is an arithmetic number, because the mean of its divisors is an integer number (67320139).

Almost surely, 2^134640277 is an apocalyptic number.

It is an amenable number.

134640277 is a deficient number, since it is larger than the sum of its proper divisors (1).

134640277 is an equidigital number, since it uses as much as digits as its factorization.

134640277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 134640277 is about 11603.4596995896. The cubic root of 134640277 is about 512.5367359747.

The spelling of 134640277 in words is "one hundred thirty-four million, six hundred forty thousand, two hundred seventy-seven".