242751089 has 4 divisors (see below), whose sum is σ = 277429824. Its totient is φ = 208072356.

The previous prime is 242751053. The next prime is 242751107. The reversal of 242751089 is 980157242.

242751089 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242751089 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (242751389) 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, 17339357 + ... + 17339370.

It is an arithmetic number, because the mean of its divisors is an integer number (69357456).

Almost surely, 2^242751089 is an apocalyptic number.

It is an amenable number.

242751089 is a deficient number, since it is larger than the sum of its proper divisors (34678735).

242751089 is an equidigital number, since it uses as much as digits as its factorization.

242751089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34678734.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 242751089 is about 15580.4713985168. The cubic root of 242751089 is about 623.8120059162.

The spelling of 242751089 in words is "two hundred forty-two million, seven hundred fifty-one thousand, eighty-nine".