257134711 has 8 divisors (see below), whose sum is σ = 264273680. Its totient is φ = 250048512.

The previous prime is 257134693. The next prime is 257134721. The reversal of 257134711 is 117431752.

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

It is a cyclic number.

It is not a de Polignac number, because 257134711 - 2¹⁹ = 256610423 is a prime.

It is a super-2 number, since 2×257134711² = 132236519202107042, 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 (257134721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3210 + ... + 22903.

It is an arithmetic number, because the mean of its divisors is an integer number (33034210).

Almost surely, 2^257134711 is an apocalyptic number.

257134711 is a deficient number, since it is larger than the sum of its proper divisors (7138969).

257134711 is a wasteful number, since it uses less digits than its factorization.

257134711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26385.

The product of its digits is 5880, while the sum is 31.

The square root of 257134711 is about 16035.4205121038. The cubic root of 257134711 is about 635.8971846707.

The spelling of 257134711 in words is "two hundred fifty-seven million, one hundred thirty-four thousand, seven hundred eleven".