245638158 has 16 divisors (see below), whose sum is σ = 491524176. Its totient is φ = 81838080.

The previous prime is 245638139. The next prime is 245638171. The reversal of 245638158 is 851836542.

245638158 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4110 + ... + 22542.

It is an arithmetic number, because the mean of its divisors is an integer number (30720261).

Almost surely, 2^245638158 is an apocalyptic number.

245638158 is an abundant number, since it is smaller than the sum of its proper divisors (245886018).

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

245638158 is a wasteful number, since it uses less digits than its factorization.

245638158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20659.

The product of its digits is 230400, while the sum is 42.

The square root of 245638158 is about 15672.8477948329. The cubic root of 245638158 is about 626.2752908699.

The spelling of 245638158 in words is "two hundred forty-five million, six hundred thirty-eight thousand, one hundred fifty-eight".