1215451304054 has 128 divisors (see below), whose sum is σ = 2123780736000. Its totient is φ = 517013798400.

The previous prime is 1215451304029. The next prime is 1215451304077. The reversal of 1215451304054 is 4504031545121.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1838806484 + ... + 1838807144.

It is an arithmetic number, because the mean of its divisors is an integer number (16592037000).

Almost surely, 2^{1215451304054} is an apocalyptic number.

1215451304054 is a deficient number, since it is larger than the sum of its proper divisors (908329431946).

1215451304054 is a wasteful number, since it uses less digits than its factorization.

1215451304054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334.

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 1215451304054 its reverse (4504031545121), we get a palindrome (5719482849175).

The spelling of 1215451304054 in words is "one trillion, two hundred fifteen billion, four hundred fifty-one million, three hundred four thousand, fifty-four".