257864114 has 8 divisors (see below), whose sum is σ = 400134060. Its totient is φ = 124486096.

The previous prime is 257864083. The next prime is 257864147. The reversal of 257864114 is 411468752.

It can be written as a sum of positive squares in 2 ways, for example, as 236083225 + 21780889 = 15365^2 + 4667^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2222909 + ... + 2223024.

Almost surely, 2^257864114 is an apocalyptic number.

257864114 is a deficient number, since it is larger than the sum of its proper divisors (142269946).

257864114 is a wasteful number, since it uses less digits than its factorization.

257864114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4445964.

The product of its digits is 53760, while the sum is 38.

The square root of 257864114 is about 16058.1479006765. The cubic root of 257864114 is about 636.4978911138.

The spelling of 257864114 in words is "two hundred fifty-seven million, eight hundred sixty-four thousand, one hundred fourteen".