1521000054 has 24 divisors (see below), whose sum is σ = 3766286160. Its totient is φ = 434571408.

The previous prime is 1521000029. The next prime is 1521000067. The reversal of 1521000054 is 4500001251.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 11 ways as a sum of consecutive naturals, for example, 6035589 + ... + 6035840.

It is an arithmetic number, because the mean of its divisors is an integer number (156928590).

Almost surely, 2^1521000054 is an apocalyptic number.

1521000054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1521000054 is an abundant number, since it is smaller than the sum of its proper divisors (2245286106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1521000054 is a wasteful number, since it uses less digits than its factorization.

1521000054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12071444 (or 12071441 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 1521000054 is about 39000.0006923077. Note that the first 3 decimals coincide. The cubic root of 1521000054 is about 1150.0315187329.

The spelling of 1521000054 in words is "one billion, five hundred twenty-one million, fifty-four", and thus it is an aban number.