253189361 has 2 divisors, whose sum is σ = 253189362. Its totient is φ = 253189360.

The previous prime is 253189291. The next prime is 253189373. The reversal of 253189361 is 163981352.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 223323136 + 29866225 = 14944^2 + 5465^2 .

It is a cyclic number.

It is not a de Polignac number, because 253189361 - 2¹⁴ = 253172977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (253189061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126594680 + 126594681.

It is an arithmetic number, because the mean of its divisors is an integer number (126594681).

Almost surely, 2^253189361 is an apocalyptic number.

It is an amenable number.

253189361 is a deficient number, since it is larger than the sum of its proper divisors (1).

253189361 is an equidigital number, since it uses as much as digits as its factorization.

253189361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 38.

The square root of 253189361 is about 15911.9251192305. The cubic root of 253189361 is about 632.6281084277.

The spelling of 253189361 in words is "two hundred fifty-three million, one hundred eighty-nine thousand, three hundred sixty-one".