242069187 has 4 divisors (see below), whose sum is σ = 322758920. Its totient is φ = 161379456.

The previous prime is 242069183. The next prime is 242069197. The reversal of 242069187 is 781960242.

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

It is not a de Polignac number, because 242069187 - 2² = 242069183 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242069183) 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, 40344862 + ... + 40344867.

It is an arithmetic number, because the mean of its divisors is an integer number (80689730).

Almost surely, 2^242069187 is an apocalyptic number.

242069187 is a deficient number, since it is larger than the sum of its proper divisors (80689733).

242069187 is an equidigital number, since it uses as much as digits as its factorization.

242069187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80689732.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 242069187 is about 15558.5727815889. The cubic root of 242069187 is about 623.2273499990.

The spelling of 242069187 in words is "two hundred forty-two million, sixty-nine thousand, one hundred eighty-seven".