1242263163 has 16 divisors (see below), whose sum is σ = 1696128896. Its totient is φ = 808315200.

The previous prime is 1242263161. The next prime is 1242263177. The reversal of 1242263163 is 3613622421.

It is not a de Polignac number, because 1242263163 - 2¹ = 1242263161 is a prime.

It is a super-2 number, since 2×1242263163² = 3086435532293529138, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1242263163.

It is not an unprimeable number, because it can be changed into a prime (1242263161) 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 in 15 ways as a sum of consecutive naturals, for example, 229656 + ... + 235002.

It is an arithmetic number, because the mean of its divisors is an integer number (106008056).

Almost surely, 2^1242263163 is an apocalyptic number.

1242263163 is a deficient number, since it is larger than the sum of its proper divisors (453865733).

1242263163 is a wasteful number, since it uses less digits than its factorization.

1242263163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7194.

The product of its digits is 10368, while the sum is 30.

The square root of 1242263163 is about 35245.7538293622. The cubic root of 1242263163 is about 1074.9902758810.

Adding to 1242263163 its reverse (3613622421), we get a palindrome (4855885584).

The spelling of 1242263163 in words is "one billion, two hundred forty-two million, two hundred sixty-three thousand, one hundred sixty-three".