243155200454 has 4 divisors (see below), whose sum is σ = 364732800684. Its totient is φ = 121577600226.

The previous prime is 243155200423. The next prime is 243155200459. The reversal of 243155200454 is 454002551342.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×243155200454² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243155200459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60788800112 + ... + 60788800115.

It is an arithmetic number, because the mean of its divisors is an integer number (91183200171).

Almost surely, 2^243155200454 is an apocalyptic number.

243155200454 is a deficient number, since it is larger than the sum of its proper divisors (121577600230).

243155200454 is a wasteful number, since it uses less digits than its factorization.

243155200454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121577600229.

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 243155200454 its reverse (454002551342), we get a palindrome (697157751796).

The spelling of 243155200454 in words is "two hundred forty-three billion, one hundred fifty-five million, two hundred thousand, four hundred fifty-four".