45273823 has 4 divisors (see below), whose sum is σ = 51741520. Its totient is φ = 38806128.

The previous prime is 45273803. The next prime is 45273841. The reversal of 45273823 is 32837254.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32837254 = 2 ⋅16418627.

It is a cyclic number.

It is not a de Polignac number, because 45273823 - 2¹³ = 45265631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45273803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3233838 + ... + 3233851.

It is an arithmetic number, because the mean of its divisors is an integer number (12935380).

Almost surely, 2^45273823 is an apocalyptic number.

45273823 is a deficient number, since it is larger than the sum of its proper divisors (6467697).

45273823 is an equidigital number, since it uses as much as digits as its factorization.

45273823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6467696.

The product of its digits is 40320, while the sum is 34.

The square root of 45273823 is about 6728.5825401789. The cubic root of 45273823 is about 356.4093232987.

The spelling of 45273823 in words is "forty-five million, two hundred seventy-three thousand, eight hundred twenty-three".