253045123 has 2 divisors, whose sum is σ = 253045124. Its totient is φ = 253045122.

The previous prime is 253045069. The next prime is 253045129. The reversal of 253045123 is 321540352.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253045123 is a prime.

It is not a weakly prime, because it can be changed into another prime (253045129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126522561 + 126522562.

It is an arithmetic number, because the mean of its divisors is an integer number (126522562).

Almost surely, 2^253045123 is an apocalyptic number.

253045123 is a deficient number, since it is larger than the sum of its proper divisors (1).

253045123 is an equidigital number, since it uses as much as digits as its factorization.

253045123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 253045123 is about 15907.3920866998. The cubic root of 253045123 is about 632.5079528441.

Adding to 253045123 its reverse (321540352), we get a palindrome (574585475).

The spelling of 253045123 in words is "two hundred fifty-three million, forty-five thousand, one hundred twenty-three".