1545428385 has 48 divisors (see below), whose sum is σ = 2799523584. Its totient is φ = 787885056.

The previous prime is 1545428383. The next prime is 1545428389. The reversal of 1545428385 is 5838245451.

1545428385 is a `hidden beast` number, since 1 + 545 + 4 + 28 + 3 + 85 = 666.

It is not a de Polignac number, because 1545428385 - 2¹ = 1545428383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1545428385.

It is not an unprimeable number, because it can be changed into a prime (1545428383) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 82449 + ... + 99441.

It is an arithmetic number, because the mean of its divisors is an integer number (58323408).

Almost surely, 2^1545428385 is an apocalyptic number.

1545428385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1545428385 is a deficient number, since it is larger than the sum of its proper divisors (1254095199).

1545428385 is a wasteful number, since it uses less digits than its factorization.

1545428385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17094 (or 17091 counting only the distinct ones).

The product of its digits is 768000, while the sum is 45.

The square root of 1545428385 is about 39311.9369276051. The cubic root of 1545428385 is about 1156.1556207942.

The spelling of 1545428385 in words is "one billion, five hundred forty-five million, four hundred twenty-eight thousand, three hundred eighty-five".