242194511 has 4 divisors (see below), whose sum is σ = 260824872. Its totient is φ = 223564152.

The previous prime is 242194499. The next prime is 242194517. The reversal of 242194511 is 115491242.

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 242194511 - 2¹⁴ = 242178127 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 (242194517) 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, 9315161 + ... + 9315186.

It is an arithmetic number, because the mean of its divisors is an integer number (65206218).

Almost surely, 2^242194511 is an apocalyptic number.

242194511 is a deficient number, since it is larger than the sum of its proper divisors (18630361).

242194511 is a wasteful number, since it uses less digits than its factorization.

242194511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18630360.

The product of its digits is 2880, while the sum is 29.

The square root of 242194511 is about 15562.5997506843. The cubic root of 242194511 is about 623.3348838139.

The spelling of 242194511 in words is "two hundred forty-two million, one hundred ninety-four thousand, five hundred eleven".