1545149928 has 96 divisors (see below), whose sum is σ = 4648600800. Its totient is φ = 426238848.

The previous prime is 1545149923. The next prime is 1545149929. The reversal of 1545149928 is 8299415451.

It is not an unprimeable number, because it can be changed into a prime (1545149923) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11451 + ... + 56757.

It is an arithmetic number, because the mean of its divisors is an integer number (48422925).

Almost surely, 2^1545149928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1545149928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2324300400).

1545149928 is an abundant number, since it is smaller than the sum of its proper divisors (3103450872).

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

1545149928 is a wasteful number, since it uses less digits than its factorization.

1545149928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45359 (or 45348 counting only the distinct ones).

The product of its digits is 518400, while the sum is 48.

The square root of 1545149928 is about 39308.3951338642. The cubic root of 1545149928 is about 1156.0861774893.

The spelling of 1545149928 in words is "one billion, five hundred forty-five million, one hundred forty-nine thousand, nine hundred twenty-eight".