1545925545 has 12 divisors (see below), whose sum is σ = 2679604356. Its totient is φ = 824493600.

The previous prime is 1545925531. The next prime is 1545925573. The reversal of 1545925545 is 5455295451.

1545925545 is a `hidden beast` number, since 1 + 5 + 4 + 5 + 92 + 554 + 5 = 666.

1545925545 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 280629504 + 1265296041 = 16752^2 + 35571^2 .

It is not a de Polignac number, because 1545925545 - 2¹³ = 1545917353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 34353901 = 1545925545 / (1 + 5 + 4 + 5 + 9 + 2 + 5 + 5 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 1545925545.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17176906 + ... + 17176995.

It is an arithmetic number, because the mean of its divisors is an integer number (223300363).

Almost surely, 2^1545925545 is an apocalyptic number.

1545925545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1545925545 is a deficient number, since it is larger than the sum of its proper divisors (1133678811).

1545925545 is a wasteful number, since it uses less digits than its factorization.

1545925545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34353912 (or 34353909 counting only the distinct ones).

The product of its digits is 900000, while the sum is 45.

The square root of 1545925545 is about 39318.2596893606. The cubic root of 1545925545 is about 1156.2795848481.

The spelling of 1545925545 in words is "one billion, five hundred forty-five million, nine hundred twenty-five thousand, five hundred forty-five".