242040053 has 4 divisors (see below), whose sum is σ = 243004608. Its totient is φ = 241075500.

The previous prime is 242040037. The next prime is 242040089. The reversal of 242040053 is 350040242.

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 242040053 - 2⁴ = 242040037 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 (242040023) 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, 481901 + ... + 482402.

It is an arithmetic number, because the mean of its divisors is an integer number (60751152).

Almost surely, 2^242040053 is an apocalyptic number.

It is an amenable number.

242040053 is a deficient number, since it is larger than the sum of its proper divisors (964555).

242040053 is an equidigital number, since it uses as much as digits as its factorization.

242040053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964554.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 242040053 is about 15557.6364850192. The cubic root of 242040053 is about 623.2023463567.

Adding to 242040053 its reverse (350040242), we get a palindrome (592080295).

The spelling of 242040053 in words is "two hundred forty-two million, forty thousand, fifty-three".