243113454 has 16 divisors (see below), whose sum is σ = 540252240. Its totient is φ = 81037800.

The previous prime is 243113441. The next prime is 243113461. The reversal of 243113454 is 454311342.

It is a happy number.

243113454 is a `hidden beast` number, since 2 + 4 + 311 + 345 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2250997 + ... + 2251104.

It is an arithmetic number, because the mean of its divisors is an integer number (33765765).

Almost surely, 2^243113454 is an apocalyptic number.

243113454 is an abundant number, since it is smaller than the sum of its proper divisors (297138786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243113454 is a wasteful number, since it uses less digits than its factorization.

243113454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4502112 (or 4502106 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 243113454 is about 15592.0958822090. The cubic root of 243113454 is about 624.1222486077.

Adding to 243113454 its reverse (454311342), we get a palindrome (697424796).

The spelling of 243113454 in words is "two hundred forty-three million, one hundred thirteen thousand, four hundred fifty-four".