253543123 has 2 divisors, whose sum is σ = 253543124. Its totient is φ = 253543122.

The previous prime is 253543067. The next prime is 253543177. The reversal of 253543123 is 321345352.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253543123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253543091 and 253543100.

It is not a weakly prime, because it can be changed into another prime (253543223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126771561 + 126771562.

It is an arithmetic number, because the mean of its divisors is an integer number (126771562).

Almost surely, 2^253543123 is an apocalyptic number.

253543123 is a deficient number, since it is larger than the sum of its proper divisors (1).

253543123 is an equidigital number, since it uses as much as digits as its factorization.

253543123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 28.

The square root of 253543123 is about 15923.0374928906. The cubic root of 253543123 is about 632.9226121569.

Adding to 253543123 its reverse (321345352), we get a palindrome (574888475).

The spelling of 253543123 in words is "two hundred fifty-three million, five hundred forty-three thousand, one hundred twenty-three".