1242124142 has 16 divisors (see below), whose sum is σ = 2254612320. Its totient is φ = 501024768.

The previous prime is 1242124129. The next prime is 1242124157. The reversal of 1242124142 is 2414212421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2609267 + ... + 2609742.

It is an arithmetic number, because the mean of its divisors is an integer number (140913270).

Almost surely, 2^1242124142 is an apocalyptic number.

1242124142 is a deficient number, since it is larger than the sum of its proper divisors (1012488178).

1242124142 is a wasteful number, since it uses less digits than its factorization.

1242124142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5219035.

The product of its digits is 1024, while the sum is 23.

The square root of 1242124142 is about 35243.7816075404. The cubic root of 1242124142 is about 1074.9501738579.

Adding to 1242124142 its reverse (2414212421), we get a palindrome (3656336563).

It can be divided in two parts, 12421 and 24142, that added together give a palindrome (36563).

The spelling of 1242124142 in words is "one billion, two hundred forty-two million, one hundred twenty-four thousand, one hundred forty-two".