242443153 has 4 divisors (see below), whose sum is σ = 242479588. Its totient is φ = 242406720.

The previous prime is 242443109. The next prime is 242443163. The reversal of 242443153 is 351344242.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 351344242 = 2 ⋅175672121.

It can be written as a sum of positive squares in 2 ways, for example, as 8720209 + 233722944 = 2953^2 + 15288^2 .

It is a cyclic number.

It is not a de Polignac number, because 242443153 - 2¹³ = 242434961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242443163) 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, 5076 + ... + 22597.

It is an arithmetic number, because the mean of its divisors is an integer number (60619897).

Almost surely, 2^242443153 is an apocalyptic number.

It is an amenable number.

242443153 is a deficient number, since it is larger than the sum of its proper divisors (36435).

242443153 is an equidigital number, since it uses as much as digits as its factorization.

242443153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36434.

The product of its digits is 11520, while the sum is 28.

The square root of 242443153 is about 15570.5861482476. The cubic root of 242443153 is about 623.5481204448.

Adding to 242443153 its reverse (351344242), we get a palindrome (593787395).

The spelling of 242443153 in words is "two hundred forty-two million, four hundred forty-three thousand, one hundred fifty-three".