134867257 has 16 divisors (see below), whose sum is σ = 161545600. Its totient is φ = 112465584.

The previous prime is 134867237. The next prime is 134867261. The reversal of 134867257 is 752768431.

It is not a de Polignac number, because 134867257 - 2¹⁵ = 134834489 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134867207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7378 + ... + 18004.

It is an arithmetic number, because the mean of its divisors is an integer number (10096600).

Almost surely, 2^134867257 is an apocalyptic number.

It is an amenable number.

134867257 is a deficient number, since it is larger than the sum of its proper divisors (26678343).

134867257 is an equidigital number, since it uses as much as digits as its factorization.

134867257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10685 (or 10671 counting only the distinct ones).

The product of its digits is 282240, while the sum is 43.

The square root of 134867257 is about 11613.2362845160. The cubic root of 134867257 is about 512.8245900954.

The spelling of 134867257 in words is "one hundred thirty-four million, eight hundred sixty-seven thousand, two hundred fifty-seven".