145826873 has 4 divisors (see below), whose sum is σ = 149383668. Its totient is φ = 142270080.

The previous prime is 145826827. The next prime is 145826887. The reversal of 145826873 is 378628541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 378628541 = 773 ⋅489817.

It can be written as a sum of positive squares in 2 ways, for example, as 26296384 + 119530489 = 5128^2 + 10933^2 .

It is a cyclic number.

It is not a de Polignac number, because 145826873 - 2⁸ = 145826617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145826893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1778336 + ... + 1778417.

It is an arithmetic number, because the mean of its divisors is an integer number (37345917).

Almost surely, 2^145826873 is an apocalyptic number.

It is an amenable number.

145826873 is a deficient number, since it is larger than the sum of its proper divisors (3556795).

145826873 is an equidigital number, since it uses as much as digits as its factorization.

145826873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3556794.

The product of its digits is 322560, while the sum is 44.

The square root of 145826873 is about 12075.8798023167. The cubic root of 145826873 is about 526.3555271588.

The spelling of 145826873 in words is "one hundred forty-five million, eight hundred twenty-six thousand, eight hundred seventy-three".