1218201454 has 16 divisors (see below), whose sum is σ = 1924174080. Its totient is φ = 576833400.

The previous prime is 1218201401. The next prime is 1218201503. The reversal of 1218201454 is 4541028121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166779 + ... + 173929.

It is an arithmetic number, because the mean of its divisors is an integer number (120260880).

Almost surely, 2^1218201454 is an apocalyptic number.

1218201454 is a deficient number, since it is larger than the sum of its proper divisors (705972626).

1218201454 is a wasteful number, since it uses less digits than its factorization.

1218201454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11655.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 1218201454 is about 34902.7427862052. The cubic root of 1218201454 is about 1068.0043899767.

Adding to 1218201454 its reverse (4541028121), we get a palindrome (5759229575).

It can be divided in two parts, 12182014 and 54, that multiplied together give a palindrome (657828756).

The spelling of 1218201454 in words is "one billion, two hundred eighteen million, two hundred one thousand, four hundred fifty-four".