257348121 has 16 divisors (see below), whose sum is σ = 348183360. Its totient is φ = 169057280.

The previous prime is 257348099. The next prime is 257348123. The reversal of 257348121 is 121843752.

It is a cyclic number.

It is not a de Polignac number, because 257348121 - 2⁵ = 257348089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (257348123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58561 + ... + 62801.

It is an arithmetic number, because the mean of its divisors is an integer number (21761460).

Almost surely, 2^257348121 is an apocalyptic number.

It is an amenable number.

257348121 is a deficient number, since it is larger than the sum of its proper divisors (90835239).

257348121 is a wasteful number, since it uses less digits than its factorization.

257348121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4536.

The product of its digits is 13440, while the sum is 33.

The square root of 257348121 is about 16042.0734632403. The cubic root of 257348121 is about 636.0730578430.

The spelling of 257348121 in words is "two hundred fifty-seven million, three hundred forty-eight thousand, one hundred twenty-one".