257134463 has 4 divisors (see below), whose sum is σ = 257296080. Its totient is φ = 256972848.

The previous prime is 257134441. The next prime is 257134481. The reversal of 257134463 is 364431752.

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

It is a cyclic number.

It is not a de Polignac number, because 257134463 - 2⁶ = 257134399 is a prime.

It is a super-2 number, since 2×257134463² = 132236264124596738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257134483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78398 + ... + 81611.

It is an arithmetic number, because the mean of its divisors is an integer number (64324020).

Almost surely, 2^257134463 is an apocalyptic number.

257134463 is a deficient number, since it is larger than the sum of its proper divisors (161617).

257134463 is a wasteful number, since it uses less digits than its factorization.

257134463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161616.

The product of its digits is 60480, while the sum is 35.

The square root of 257134463 is about 16035.4127792209. The cubic root of 257134463 is about 635.8969802350.

The spelling of 257134463 in words is "two hundred fifty-seven million, one hundred thirty-four thousand, four hundred sixty-three".