257542341 has 8 divisors (see below), whose sum is σ = 392445504. Its totient is φ = 147167040.

The previous prime is 257542303. The next prime is 257542349. The reversal of 257542341 is 143245752.

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

It is not a de Polignac number, because 257542341 - 2⁹ = 257541829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257542349) 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, 6131940 + ... + 6131981.

It is an arithmetic number, because the mean of its divisors is an integer number (49055688).

Almost surely, 2^257542341 is an apocalyptic number.

257542341 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

257542341 is a deficient number, since it is larger than the sum of its proper divisors (134903163).

257542341 is a wasteful number, since it uses less digits than its factorization.

257542341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12263931.

The product of its digits is 33600, while the sum is 33.

The square root of 257542341 is about 16048.1257784204. The cubic root of 257542341 is about 636.2330318681.

The spelling of 257542341 in words is "two hundred fifty-seven million, five hundred forty-two thousand, three hundred forty-one".