1545016220 has 48 divisors (see below), whose sum is σ = 3543257088. Its totient is φ = 561226560.

The previous prime is 1545016211. The next prime is 1545016241. The reversal of 1545016220 is 226105451.

It is a self number, because there is not a number n which added to its sum of digits gives 1545016220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239477 + ... + 245843.

It is an arithmetic number, because the mean of its divisors is an integer number (73817856).

Almost surely, 2^1545016220 is an apocalyptic number.

1545016220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1545016220 is an abundant number, since it is smaller than the sum of its proper divisors (1998240868).

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

1545016220 is a wasteful number, since it uses less digits than its factorization.

1545016220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7490 (or 7488 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1545016220 is about 39306.6943407863. The cubic root of 1545016220 is about 1156.0528296079.

The spelling of 1545016220 in words is "one billion, five hundred forty-five million, sixteen thousand, two hundred twenty".