243162453 has 4 divisors (see below), whose sum is σ = 324216608. Its totient is φ = 162108300.

The previous prime is 243162427. The next prime is 243162461. The reversal of 243162453 is 354261342.

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 not a de Polignac number, because 243162453 - 2⁵ = 243162421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 243162453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243162473) 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, 40527073 + ... + 40527078.

It is an arithmetic number, because the mean of its divisors is an integer number (81054152).

Almost surely, 2^243162453 is an apocalyptic number.

It is an amenable number.

243162453 is a deficient number, since it is larger than the sum of its proper divisors (81054155).

243162453 is an equidigital number, since it uses as much as digits as its factorization.

243162453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81054154.

The product of its digits is 17280, while the sum is 30.

The square root of 243162453 is about 15593.6670799399. The cubic root of 243162453 is about 624.1641759620.

The spelling of 243162453 in words is "two hundred forty-three million, one hundred sixty-two thousand, four hundred fifty-three".