258126494 has 4 divisors (see below), whose sum is σ = 387189744. Its totient is φ = 129063246.

The previous prime is 258126469. The next prime is 258126511. The reversal of 258126494 is 494621852.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64531622 + ... + 64531625.

It is an arithmetic number, because the mean of its divisors is an integer number (96797436).

Almost surely, 2^258126494 is an apocalyptic number.

258126494 is a deficient number, since it is larger than the sum of its proper divisors (129063250).

258126494 is a wasteful number, since it uses less digits than its factorization.

258126494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129063249.

The product of its digits is 138240, while the sum is 41.

The square root of 258126494 is about 16066.3155079190. The cubic root of 258126494 is about 636.7136994880.

The spelling of 258126494 in words is "two hundred fifty-eight million, one hundred twenty-six thousand, four hundred ninety-four".