1218037852 has 12 divisors (see below), whose sum is σ = 2132298000. Its totient is φ = 608809856.

The previous prime is 1218037829. The next prime is 1218037867. The reversal of 1218037852 is 2587308121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38773 + ... + 62764.

It is an arithmetic number, because the mean of its divisors is an integer number (177691500).

Almost surely, 2^1218037852 is an apocalyptic number.

It is an amenable number.

1218037852 is a deficient number, since it is larger than the sum of its proper divisors (914260148).

1218037852 is a wasteful number, since it uses less digits than its factorization.

1218037852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104540 (or 104538 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 1218037852 is about 34900.3990235069. The cubic root of 1218037852 is about 1067.9565775572.

The spelling of 1218037852 in words is "one billion, two hundred eighteen million, thirty-seven thousand, eight hundred fifty-two".