253857343 has 2 divisors, whose sum is σ = 253857344. Its totient is φ = 253857342.

The previous prime is 253857323. The next prime is 253857377. The reversal of 253857343 is 343758352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253857343 - 2⁹ = 253856831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253857296 and 253857305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253857313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126928671 + 126928672.

It is an arithmetic number, because the mean of its divisors is an integer number (126928672).

Almost surely, 2^253857343 is an apocalyptic number.

253857343 is a deficient number, since it is larger than the sum of its proper divisors (1).

253857343 is an equidigital number, since it uses as much as digits as its factorization.

253857343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 40.

The square root of 253857343 is about 15932.9012737794. The cubic root of 253857343 is about 633.1839678850.

The spelling of 253857343 in words is "two hundred fifty-three million, eight hundred fifty-seven thousand, three hundred forty-three".