1216336054 has 4 divisors (see below), whose sum is σ = 1824504084. Its totient is φ = 608168026.

The previous prime is 1216336027. The next prime is 1216336063. The reversal of 1216336054 is 4506336121.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304084012 + ... + 304084015.

It is an arithmetic number, because the mean of its divisors is an integer number (456126021).

Almost surely, 2^1216336054 is an apocalyptic number.

1216336054 is a deficient number, since it is larger than the sum of its proper divisors (608168030).

1216336054 is an equidigital number, since it uses as much as digits as its factorization.

1216336054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608168029.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 1216336054 is about 34876.0097201500. The cubic root of 1216336054 is about 1067.4589757666.

The spelling of 1216336054 in words is "one billion, two hundred sixteen million, three hundred thirty-six thousand, fifty-four".