1258163 has 2 divisors, whose sum is σ = 1258164. Its totient is φ = 1258162.

The previous prime is 1258151. The next prime is 1258171. The reversal of 1258163 is 3618521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1258163 - 2⁶ = 1258099 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (1258133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 629081 + 629082.

It is an arithmetic number, because the mean of its divisors is an integer number (629082).

2^1258163 is an apocalyptic number.

1258163 is a deficient number, since it is larger than the sum of its proper divisors (1).

1258163 is an equidigital number, since it uses as much as digits as its factorization.

1258163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 26.

The square root of 1258163 is about 1121.6786527344. The cubic root of 1258163 is about 107.9557145822.

The spelling of 1258163 in words is "one million, two hundred fifty-eight thousand, one hundred sixty-three".