257113198 has 8 divisors (see below), whose sum is σ = 386763408. Its totient is φ = 128192064.

The previous prime is 257113121. The next prime is 257113201. The reversal of 257113198 is 891311752.

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

It is a super-2 number, since 2×257113198² = 132214393171574408, which contains 22 as substring.

It is a congruent number.

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, 181386 + ... + 182797.

It is an arithmetic number, because the mean of its divisors is an integer number (48345426).

Almost surely, 2^257113198 is an apocalyptic number.

257113198 is a deficient number, since it is larger than the sum of its proper divisors (129650210).

257113198 is a wasteful number, since it uses less digits than its factorization.

257113198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364538.

The product of its digits is 15120, while the sum is 37.

The square root of 257113198 is about 16034.7497018195. The cubic root of 257113198 is about 635.8794502082.

The spelling of 257113198 in words is "two hundred fifty-seven million, one hundred thirteen thousand, one hundred ninety-eight".