257800134 has 16 divisors (see below), whose sum is σ = 515801088. Its totient is φ = 85899912.

The previous prime is 257800133. The next prime is 257800139. The reversal of 257800134 is 431008752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257800133) 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 in 7 ways as a sum of consecutive naturals, for example, 12219 + ... + 25785.

It is an arithmetic number, because the mean of its divisors is an integer number (32237568).

Almost surely, 2^257800134 is an apocalyptic number.

257800134 is an abundant number, since it is smaller than the sum of its proper divisors (258000954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

257800134 is a wasteful number, since it uses less digits than its factorization.

257800134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16739.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 257800134 is about 16056.1556419960. The cubic root of 257800134 is about 636.4452451640.

Adding to 257800134 its reverse (431008752), we get a palindrome (688808886).

The spelling of 257800134 in words is "two hundred fifty-seven million, eight hundred thousand, one hundred thirty-four".