242122253 has 4 divisors (see below), whose sum is σ = 246226080. Its totient is φ = 238018428.

The previous prime is 242122249. The next prime is 242122291. The reversal of 242122253 is 352221242.

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 242122253 - 2² = 242122249 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 (242128253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2051825 + ... + 2051942.

It is an arithmetic number, because the mean of its divisors is an integer number (61556520).

Almost surely, 2^242122253 is an apocalyptic number.

It is an amenable number.

242122253 is a deficient number, since it is larger than the sum of its proper divisors (4103827).

242122253 is an equidigital number, since it uses as much as digits as its factorization.

242122253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4103826.

The product of its digits is 1920, while the sum is 23.

The square root of 242122253 is about 15560.2780502149. The cubic root of 242122253 is about 623.2728876221.

Adding to 242122253 its reverse (352221242), we get a palindrome (594343495).

The spelling of 242122253 in words is "two hundred forty-two million, one hundred twenty-two thousand, two hundred fifty-three".