1545125673 has 48 divisors (see below), whose sum is σ = 2595862080. Its totient is φ = 810278784.

The previous prime is 1545125663. The next prime is 1545125693. The reversal of 1545125673 is 3765215451.

1545125673 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1545125673 - 2⁶ = 1545125609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (1545125663) 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, 339811 + ... + 344327.

It is an arithmetic number, because the mean of its divisors is an integer number (54080460).

Almost surely, 2^1545125673 is an apocalyptic number.

1545125673 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1545125673 is a deficient number, since it is larger than the sum of its proper divisors (1050736407).

1545125673 is a wasteful number, since it uses less digits than its factorization.

1545125673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4726 (or 4719 counting only the distinct ones).

The product of its digits is 126000, while the sum is 39.

The square root of 1545125673 is about 39308.0866107726. The cubic root of 1545125673 is about 1156.0801282345.

The spelling of 1545125673 in words is "one billion, five hundred forty-five million, one hundred twenty-five thousand, six hundred seventy-three".