1242316558 has 32 divisors (see below), whose sum is σ = 2319091200. Its totient is φ = 487003104.

The previous prime is 1242316547. The next prime is 1242316571. The reversal of 1242316558 is 8556132421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72810 + ... + 88237.

It is an arithmetic number, because the mean of its divisors is an integer number (72471600).

Almost surely, 2^1242316558 is an apocalyptic number.

1242316558 is a deficient number, since it is larger than the sum of its proper divisors (1076774642).

1242316558 is a wasteful number, since it uses less digits than its factorization.

1242316558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161104.

The product of its digits is 57600, while the sum is 37.

The square root of 1242316558 is about 35246.5112883531. The cubic root of 1242316558 is about 1075.0056774173.

Adding to 1242316558 its reverse (8556132421), we get a palindrome (9798448979).

The spelling of 1242316558 in words is "one billion, two hundred forty-two million, three hundred sixteen thousand, five hundred fifty-eight".