1242317652 has 12 divisors (see below), whose sum is σ = 2898741216. Its totient is φ = 414105880.

The previous prime is 1242317633. The next prime is 1242317669. The reversal of 1242317652 is 2567132421.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 51763224 + ... + 51763247.

It is an arithmetic number, because the mean of its divisors is an integer number (241561768).

Almost surely, 2^1242317652 is an apocalyptic number.

1242317652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1242317652 is an abundant number, since it is smaller than the sum of its proper divisors (1656423564).

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

1242317652 is a wasteful number, since it uses less digits than its factorization.

1242317652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103526478 (or 103526476 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 1242317652 is about 35246.5268076161. The cubic root of 1242317652 is about 1075.0059929718.

The spelling of 1242317652 in words is "one billion, two hundred forty-two million, three hundred seventeen thousand, six hundred fifty-two".