257075133 has 8 divisors (see below), whose sum is σ = 391733568. Its totient is φ = 146900064.

The previous prime is 257075099. The next prime is 257075141. The reversal of 257075133 is 331570752.

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

It is not a de Polignac number, because 257075133 - 2⁸ = 257074877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 257075094 and 257075103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257075183) 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, 6120816 + ... + 6120857.

It is an arithmetic number, because the mean of its divisors is an integer number (48966696).

Almost surely, 2^257075133 is an apocalyptic number.

It is an amenable number.

257075133 is a deficient number, since it is larger than the sum of its proper divisors (134658435).

257075133 is a wasteful number, since it uses less digits than its factorization.

257075133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12241683.

The product of its (nonzero) digits is 22050, while the sum is 33.

The square root of 257075133 is about 16033.5627045270. The cubic root of 257075133 is about 635.8480685106.

The spelling of 257075133 in words is "two hundred fifty-seven million, seventy-five thousand, one hundred thirty-three".