242323153 has 4 divisors (see below), whose sum is σ = 242365860. Its totient is φ = 242280448.

The previous prime is 242323111. The next prime is 242323157. The reversal of 242323153 is 351323242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 351323242 = 2 ⋅175661621.

It can be written as a sum of positive squares in 2 ways, for example, as 182601169 + 59721984 = 13513^2 + 7728^2 .

It is a cyclic number.

It is not a de Polignac number, because 242323153 - 2²¹ = 240226001 is a prime.

It is a super-2 number, since 2×242323153² = 117441020959722818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242323157) 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, 11248 + ... + 24721.

It is an arithmetic number, because the mean of its divisors is an integer number (60591465).

Almost surely, 2^242323153 is an apocalyptic number.

It is an amenable number.

242323153 is a deficient number, since it is larger than the sum of its proper divisors (42707).

242323153 is an equidigital number, since it uses as much as digits as its factorization.

242323153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42706.

The product of its digits is 4320, while the sum is 25.

The square root of 242323153 is about 15566.7322518247. The cubic root of 242323153 is about 623.4452260519.

Adding to 242323153 its reverse (351323242), we get a palindrome (593646395).

The spelling of 242323153 in words is "two hundred forty-two million, three hundred twenty-three thousand, one hundred fifty-three".