242530451 has 4 divisors (see below), whose sum is σ = 250893600. Its totient is φ = 234167304.

The previous prime is 242530441. The next prime is 242530489. The reversal of 242530451 is 154035242.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 242530451 - 2¹⁴ = 242514067 is a prime.

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 242530451.

It is not an unprimeable number, because it can be changed into a prime (242530411) 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, 4181531 + ... + 4181588.

It is an arithmetic number, because the mean of its divisors is an integer number (62723400).

Almost surely, 2^242530451 is an apocalyptic number.

242530451 is a deficient number, since it is larger than the sum of its proper divisors (8363149).

242530451 is an equidigital number, since it uses as much as digits as its factorization.

242530451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8363148.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 242530451 is about 15573.3891943918. The cubic root of 242530451 is about 623.6229530684.

Adding to 242530451 its reverse (154035242), we get a palindrome (396565693).

The spelling of 242530451 in words is "two hundred forty-two million, five hundred thirty thousand, four hundred fifty-one".