242606181 has 4 divisors (see below), whose sum is σ = 323474912. Its totient is φ = 161737452.

The previous prime is 242606179. The next prime is 242606183. The reversal of 242606181 is 181606242.

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 an interprime number because it is at equal distance from previous prime (242606179) and next prime (242606183).

It is not a de Polignac number, because 242606181 - 2¹ = 242606179 is a prime.

It is a super-2 number, since 2×242606181² = 117715518118809522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242606183) 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, 40434361 + ... + 40434366.

It is an arithmetic number, because the mean of its divisors is an integer number (80868728).

Almost surely, 2^242606181 is an apocalyptic number.

It is an amenable number.

242606181 is a deficient number, since it is larger than the sum of its proper divisors (80868731).

242606181 is an equidigital number, since it uses as much as digits as its factorization.

242606181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80868730.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 242606181 is about 15575.8203957288. The cubic root of 242606181 is about 623.6878549551.

The spelling of 242606181 in words is "two hundred forty-two million, six hundred six thousand, one hundred eighty-one".