242788053 has 4 divisors (see below), whose sum is σ = 323717408. Its totient is φ = 161858700.

The previous prime is 242788037. The next prime is 242788079. The reversal of 242788053 is 350887242.

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 not a de Polignac number, because 242788053 - 2⁴ = 242788037 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 (242788003) 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, 40464673 + ... + 40464678.

It is an arithmetic number, because the mean of its divisors is an integer number (80929352).

Almost surely, 2^242788053 is an apocalyptic number.

It is an amenable number.

242788053 is a deficient number, since it is larger than the sum of its proper divisors (80929355).

242788053 is an equidigital number, since it uses as much as digits as its factorization.

242788053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80929354.

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 242788053 is about 15581.6575819134. The cubic root of 242788053 is about 623.8436671771.

It can be divided in two parts, 24278805 and 3, that multiplied together give a triangular number (72836415 = T₁₂₀₆₉).

The spelling of 242788053 in words is "two hundred forty-two million, seven hundred eighty-eight thousand, fifty-three".