258416122 has 4 divisors (see below), whose sum is σ = 387624186. Its totient is φ = 129208060.

The previous prime is 258416117. The next prime is 258416141. The reversal of 258416122 is 221614852.

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

It can be written as a sum of positive squares in only one way, i.e., 252841801 + 5574321 = 15901^2 + 2361^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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, 64604029 + ... + 64604032.

Almost surely, 2^258416122 is an apocalyptic number.

258416122 is a deficient number, since it is larger than the sum of its proper divisors (129208064).

258416122 is a wasteful number, since it uses less digits than its factorization.

258416122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129208063.

The product of its digits is 7680, while the sum is 31.

The square root of 258416122 is about 16075.3264974619. The cubic root of 258416122 is about 636.9517496828.

The spelling of 258416122 in words is "two hundred fifty-eight million, four hundred sixteen thousand, one hundred twenty-two".