1242881006 has 8 divisors (see below), whose sum is σ = 1865112960. Its totient is φ = 621176688.

The previous prime is 1242880993. The next prime is 1242881027. The reversal of 1242881006 is 6001882421.

It is a happy number.

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

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 3 ways as a sum of consecutive naturals, for example, 125966 + ... + 135473.

It is an arithmetic number, because the mean of its divisors is an integer number (233139120).

Almost surely, 2^1242881006 is an apocalyptic number.

1242881006 is a deficient number, since it is larger than the sum of its proper divisors (622231954).

1242881006 is a wasteful number, since it uses less digits than its factorization.

1242881006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263818.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 1242881006 is about 35254.5175261271. The cubic root of 1242881006 is about 1075.1684628003.

The spelling of 1242881006 in words is "one billion, two hundred forty-two million, eight hundred eighty-one thousand, six".