145745873 has 16 divisors (see below), whose sum is σ = 179725056. Its totient is φ = 115093440.

The previous prime is 145745869. The next prime is 145745891. The reversal of 145745873 is 378547541.

It is not a de Polignac number, because 145745873 - 2² = 145745869 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145745833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58940 + ... + 61362.

It is an arithmetic number, because the mean of its divisors is an integer number (11232816).

Almost surely, 2^145745873 is an apocalyptic number.

145745873 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

145745873 is a deficient number, since it is larger than the sum of its proper divisors (33979183).

145745873 is a wasteful number, since it uses less digits than its factorization.

145745873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3104.

The product of its digits is 470400, while the sum is 44.

The square root of 145745873 is about 12072.5255435638. The cubic root of 145745873 is about 526.2580538259.

The spelling of 145745873 in words is "one hundred forty-five million, seven hundred forty-five thousand, eight hundred seventy-three".