257143341 has 32 divisors (see below), whose sum is σ = 427356160. Its totient is φ = 133907904.

The previous prime is 257143301. The next prime is 257143361. The reversal of 257143341 is 143341752.

It is a happy number.

It is not a de Polignac number, because 257143341 - 2⁶ = 257143277 is a prime.

It is a super-2 number, since 2×257143341² = 132245395641284562, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 257143299 and 257143308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257143301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15606 + ... + 27528.

It is an arithmetic number, because the mean of its divisors is an integer number (13354880).

Almost surely, 2^257143341 is an apocalyptic number.

257143341 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

257143341 is a deficient number, since it is larger than the sum of its proper divisors (170212819).

257143341 is a wasteful number, since it uses less digits than its factorization.

257143341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12025.

The product of its digits is 10080, while the sum is 30.

The square root of 257143341 is about 16035.6896016355. The cubic root of 257143341 is about 635.9042986218.

The spelling of 257143341 in words is "two hundred fifty-seven million, one hundred forty-three thousand, three hundred forty-one".