253343789 has 2 divisors, whose sum is σ = 253343790. Its totient is φ = 253343788.

The previous prime is 253343743. The next prime is 253343801. The reversal of 253343789 is 987343352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 237006025 + 16337764 = 15395^2 + 4042^2 .

It is a cyclic number.

It is not a de Polignac number, because 253343789 - 2²⁴ = 236566573 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253343719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126671894 + 126671895.

It is an arithmetic number, because the mean of its divisors is an integer number (126671895).

Almost surely, 2^253343789 is an apocalyptic number.

It is an amenable number.

253343789 is a deficient number, since it is larger than the sum of its proper divisors (1).

253343789 is an equidigital number, since it uses as much as digits as its factorization.

253343789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 44.

The square root of 253343789 is about 15916.7769664590. The cubic root of 253343789 is about 632.7567020850.

The spelling of 253343789 in words is "two hundred fifty-three million, three hundred forty-three thousand, seven hundred eighty-nine".