1242163141 has 8 divisors (see below), whose sum is σ = 1271220480. Its totient is φ = 1213215408.

The previous prime is 1242163129. The next prime is 1242163147. The reversal of 1242163141 is 1413612421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1242163141 - 2¹¹ = 1242161093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242163147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4246 + ... + 50023.

It is an arithmetic number, because the mean of its divisors is an integer number (158902560).

Almost surely, 2^1242163141 is an apocalyptic number.

It is an amenable number.

1242163141 is a deficient number, since it is larger than the sum of its proper divisors (29057339).

1242163141 is an equidigital number, since it uses as much as digits as its factorization.

1242163141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54803.

The product of its digits is 1152, while the sum is 25.

The square root of 1242163141 is about 35244.3348781049. The cubic root of 1242163141 is about 1074.9614238185.

Adding to 1242163141 its reverse (1413612421), we get a palindrome (2655775562).

The spelling of 1242163141 in words is "one billion, two hundred forty-two million, one hundred sixty-three thousand, one hundred forty-one".