1821286054 has 16 divisors (see below), whose sum is σ = 3122903808. Its totient is φ = 780376392.

The previous prime is 1821286037. The next prime is 1821286063. The reversal of 1821286054 is 4506821281.

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 in 7 ways as a sum of consecutive naturals, for example, 65287 + ... + 88909.

It is an arithmetic number, because the mean of its divisors is an integer number (195181488).

Almost surely, 2^1821286054 is an apocalyptic number.

1821286054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1821286054 is a deficient number, since it is larger than the sum of its proper divisors (1301617754).

1821286054 is a wasteful number, since it uses less digits than its factorization.

1821286054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29139.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 1821286054 is about 42676.5281390134. The cubic root of 1821286054 is about 1221.2166609409.

The spelling of 1821286054 in words is "one billion, eight hundred twenty-one million, two hundred eighty-six thousand, fifty-four".