257230671 has 8 divisors (see below), whose sum is σ = 350271744. Its totient is φ = 167838360.

The previous prime is 257230669. The next prime is 257230691. The reversal of 257230671 is 176032752.

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

It is not a de Polignac number, because 257230671 - 2¹ = 257230669 is a prime.

It is a super-2 number, since 2×257230671² = 132335236206220482, which contains 22 as substring.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257230661) 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, 912025 + ... + 912306.

It is an arithmetic number, because the mean of its divisors is an integer number (43783968).

Almost surely, 2^257230671 is an apocalyptic number.

257230671 is a deficient number, since it is larger than the sum of its proper divisors (93041073).

257230671 is a wasteful number, since it uses less digits than its factorization.

257230671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824381.

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 257230671 is about 16038.4123590834. The cubic root of 257230671 is about 635.9762782379.

The spelling of 257230671 in words is "two hundred fifty-seven million, two hundred thirty thousand, six hundred seventy-one".