1242367163 has 4 divisors (see below), whose sum is σ = 1285207440. Its totient is φ = 1199526888.

The previous prime is 1242367097. The next prime is 1242367177. The reversal of 1242367163 is 3617632421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1242367163 - 2¹⁸ = 1242105019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242367183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21420095 + ... + 21420152.

It is an arithmetic number, because the mean of its divisors is an integer number (321301860).

Almost surely, 2^1242367163 is an apocalyptic number.

1242367163 is a deficient number, since it is larger than the sum of its proper divisors (42840277).

1242367163 is an equidigital number, since it uses as much as digits as its factorization.

1242367163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42840276.

The product of its digits is 36288, while the sum is 35.

The square root of 1242367163 is about 35247.2291535094. The cubic root of 1242367163 is about 1075.0202737839.

Adding to 1242367163 its reverse (3617632421), we get a palindrome (4859999584).

The spelling of 1242367163 in words is "one billion, two hundred forty-two million, three hundred sixty-seven thousand, one hundred sixty-three".