253165111 has 2 divisors, whose sum is σ = 253165112. Its totient is φ = 253165110.

The previous prime is 253165109. The next prime is 253165183. The reversal of 253165111 is 111561352.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253165111 - 2¹ = 253165109 is a prime.

Together with 253165109, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253165511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126582555 + 126582556.

It is an arithmetic number, because the mean of its divisors is an integer number (126582556).

Almost surely, 2^253165111 is an apocalyptic number.

253165111 is a deficient number, since it is larger than the sum of its proper divisors (1).

253165111 is an equidigital number, since it uses as much as digits as its factorization.

253165111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 900, while the sum is 25.

The square root of 253165111 is about 15911.1630938785. The cubic root of 253165111 is about 632.6079104734.

The spelling of 253165111 in words is "two hundred fifty-three million, one hundred sixty-five thousand, one hundred eleven".