1242129282 has 16 divisors (see below), whose sum is σ = 2487385152. Its totient is φ = 413522000.

The previous prime is 1242129277. The next prime is 1242129307. The reversal of 1242129282 is 2829212421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125094 + ... + 134657.

It is an arithmetic number, because the mean of its divisors is an integer number (155461572).

Almost surely, 2^1242129282 is an apocalyptic number.

1242129282 is an abundant number, since it is smaller than the sum of its proper divisors (1245255870).

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

1242129282 is a wasteful number, since it uses less digits than its factorization.

1242129282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260553.

The product of its digits is 9216, while the sum is 33.

The square root of 1242129282 is about 35243.8545281301. The cubic root of 1242129282 is about 1074.9516565965.

The spelling of 1242129282 in words is "one billion, two hundred forty-two million, one hundred twenty-nine thousand, two hundred eighty-two".