243036373 has 4 divisors (see below), whose sum is σ = 250876288. Its totient is φ = 235196460.

The previous prime is 243036359. The next prime is 243036413. The reversal of 243036373 is 373630342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 243036373 - 2⁹ = 243035861 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 7839883 = 243036373 / (2 + 4 + 3 + 0 + 3 + 6 + 3 + 7 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243036173) 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, 3919911 + ... + 3919972.

It is an arithmetic number, because the mean of its divisors is an integer number (62719072).

Almost surely, 2^243036373 is an apocalyptic number.

It is an amenable number.

243036373 is a deficient number, since it is larger than the sum of its proper divisors (7839915).

243036373 is an equidigital number, since it uses as much as digits as its factorization.

243036373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7839914.

The product of its (nonzero) digits is 27216, while the sum is 31.

The square root of 243036373 is about 15589.6238889846. The cubic root of 243036373 is about 624.0562807074.

The spelling of 243036373 in words is "two hundred forty-three million, thirty-six thousand, three hundred seventy-three".