243225023 has 8 divisors (see below), whose sum is σ = 267158400. Its totient is φ = 220404888.

The previous prime is 243225019. The next prime is 243225029. The reversal of 243225023 is 320522342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243225023 - 2² = 243225019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243225023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243225029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277853 + ... + 278726.

It is an arithmetic number, because the mean of its divisors is an integer number (33394800).

Almost surely, 2^243225023 is an apocalyptic number.

243225023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

243225023 is a deficient number, since it is larger than the sum of its proper divisors (23933377).

243225023 is a wasteful number, since it uses less digits than its factorization.

243225023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556621.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 243225023 is about 15595.6732140681. The cubic root of 243225023 is about 624.2177075315.

Adding to 243225023 its reverse (320522342), we get a palindrome (563747365).

The spelling of 243225023 in words is "two hundred forty-three million, two hundred twenty-five thousand, twenty-three".