242816453 has 4 divisors (see below), whose sum is σ = 264890688. Its totient is φ = 220742220.

The previous prime is 242816437. The next prime is 242816461. The reversal of 242816453 is 354618242.

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 242816453 - 2⁴ = 242816437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242816153) 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, 11037101 + ... + 11037122.

It is an arithmetic number, because the mean of its divisors is an integer number (66222672).

Almost surely, 2^242816453 is an apocalyptic number.

It is an amenable number.

242816453 is a deficient number, since it is larger than the sum of its proper divisors (22074235).

242816453 is a wasteful number, since it uses less digits than its factorization.

242816453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22074234.

The product of its digits is 46080, while the sum is 35.

The square root of 242816453 is about 15582.5688832105. The cubic root of 242816453 is about 623.8679908195.

It can be divided in two parts, 2428 and 16453, that added together give a palindrome (18881).

The spelling of 242816453 in words is "two hundred forty-two million, eight hundred sixteen thousand, four hundred fifty-three".