242551115 has 4 divisors (see below), whose sum is σ = 291061344. Its totient is φ = 194040888.

The previous prime is 242551081. The next prime is 242551129. The reversal of 242551115 is 511155242.

242551115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242551115 - 2⁸ = 242550859 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24255107 + ... + 24255116.

It is an arithmetic number, because the mean of its divisors is an integer number (72765336).

Almost surely, 2^242551115 is an apocalyptic number.

242551115 is a deficient number, since it is larger than the sum of its proper divisors (48510229).

242551115 is an equidigital number, since it uses as much as digits as its factorization.

242551115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48510228.

The product of its digits is 2000, while the sum is 26.

The square root of 242551115 is about 15574.0526196620. The cubic root of 242551115 is about 623.6406638049.

The spelling of 242551115 in words is "two hundred forty-two million, five hundred fifty-one thousand, one hundred fifteen".