257409119 has 4 divisors (see below), whose sum is σ = 280809960. Its totient is φ = 234008280.

The previous prime is 257409073. The next prime is 257409127. The reversal of 257409119 is 911904752.

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

It is not a de Polignac number, because 257409119 - 2²⁰ = 256360543 is a prime.

It is a super-2 number, since 2×257409119² = 132518909088712322, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257409149) by changing a digit.

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, 11700404 + ... + 11700425.

It is an arithmetic number, because the mean of its divisors is an integer number (70202490).

Almost surely, 2^257409119 is an apocalyptic number.

257409119 is a deficient number, since it is larger than the sum of its proper divisors (23400841).

257409119 is a wasteful number, since it uses less digits than its factorization.

257409119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23400840.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 257409119 is about 16043.9745387482. The cubic root of 257409119 is about 636.1233089959.

The spelling of 257409119 in words is "two hundred fifty-seven million, four hundred nine thousand, one hundred nineteen".