1242506312 has 32 divisors (see below), whose sum is σ = 2416780800. Its totient is φ = 598416000.

The previous prime is 1242506297. The next prime is 1242506323. The reversal of 1242506312 is 2136052421.

It is a happy number.

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, 1937 + ... + 49887.

It is an arithmetic number, because the mean of its divisors is an integer number (75524400).

Almost surely, 2^1242506312 is an apocalyptic number.

It is an amenable number.

1242506312 is a deficient number, since it is larger than the sum of its proper divisors (1174274488).

1242506312 is a wasteful number, since it uses less digits than its factorization.

1242506312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48077 (or 48073 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1242506312 is about 35249.2029980821. The cubic root of 1242506312 is about 1075.0604074942.

Adding to 1242506312 its reverse (2136052421), we get a palindrome (3378558733).

The spelling of 1242506312 in words is "one billion, two hundred forty-two million, five hundred six thousand, three hundred twelve".