1218055486 has 8 divisors (see below), whose sum is σ = 1830046320. Its totient is φ = 608040048.

The previous prime is 1218055483. The next prime is 1218055493. The reversal of 1218055486 is 6845508121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1218055483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492306 + ... + 494773.

It is an arithmetic number, because the mean of its divisors is an integer number (228755790).

Almost surely, 2^1218055486 is an apocalyptic number.

1218055486 is a deficient number, since it is larger than the sum of its proper divisors (611990834).

1218055486 is an equidigital number, since it uses as much as digits as its factorization.

1218055486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987698.

The product of its (nonzero) digits is 76800, while the sum is 40.

The square root of 1218055486 is about 34900.6516558072. The cubic root of 1218055486 is about 1067.9617312710.

The spelling of 1218055486 in words is "one billion, two hundred eighteen million, fifty-five thousand, four hundred eighty-six".