1242000126 has 36 divisors (see below), whose sum is σ = 2758302456. Its totient is φ = 403892640.

The previous prime is 1242000101. The next prime is 1242000143. The reversal of 1242000126 is 6210002421.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1242000099 and 1242000108.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 9735 + ... + 50781.

Almost surely, 2^1242000126 is an apocalyptic number.

1242000126 is an abundant number, since it is smaller than the sum of its proper divisors (1516302330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1242000126 is a wasteful number, since it uses less digits than its factorization.

1242000126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41137 (or 41093 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1242000126 is about 35242.0221610509. The cubic root of 1242000126 is about 1074.9143976545.

Adding to 1242000126 its reverse (6210002421), we get a palindrome (7452002547).

The spelling of 1242000126 in words is "one billion, two hundred forty-two million, one hundred twenty-six", and thus it is an aban number.