1242568164 has 48 divisors (see below), whose sum is σ = 2998284800. Its totient is φ = 400101120.

The previous prime is 1242568147. The next prime is 1242568177. The reversal of 1242568164 is 4618652421.

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 15 ways as a sum of consecutive naturals, for example, 225312 + ... + 230760.

Almost surely, 2^1242568164 is an apocalyptic number.

It is an amenable number.

1242568164 is an abundant number, since it is smaller than the sum of its proper divisors (1755716636).

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

1242568164 is a wasteful number, since it uses less digits than its factorization.

1242568164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6100 (or 6098 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The square root of 1242568164 is about 35250.0803403340. The cubic root of 1242568164 is about 1075.0782460442.

The spelling of 1242568164 in words is "one billion, two hundred forty-two million, five hundred sixty-eight thousand, one hundred sixty-four".