258344134 has 4 divisors (see below), whose sum is σ = 387516204. Its totient is φ = 129172066.

The previous prime is 258344081. The next prime is 258344137. The reversal of 258344134 is 431443852.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 258344134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258344137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64586032 + ... + 64586035.

It is an arithmetic number, because the mean of its divisors is an integer number (96879051).

Almost surely, 2^258344134 is an apocalyptic number.

258344134 is a deficient number, since it is larger than the sum of its proper divisors (129172070).

258344134 is a wasteful number, since it uses less digits than its factorization.

258344134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129172069.

The product of its digits is 46080, while the sum is 34.

The square root of 258344134 is about 16073.0872578979. The cubic root of 258344134 is about 636.8925981347.

Adding to 258344134 its reverse (431443852), we get a palindrome (689787986).

The spelling of 258344134 in words is "two hundred fifty-eight million, three hundred forty-four thousand, one hundred thirty-four".