242723181 has 8 divisors (see below), whose sum is σ = 330516864. Its totient is φ = 158372480.

The previous prime is 242723167. The next prime is 242723207. The reversal of 242723181 is 181327242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242723181 - 2¹⁹ = 242198893 is a prime.

It is a super-2 number, since 2×242723181² = 117829085189517522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242723101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 860580 + ... + 860861.

It is an arithmetic number, because the mean of its divisors is an integer number (41314608).

Almost surely, 2^242723181 is an apocalyptic number.

It is an amenable number.

242723181 is a deficient number, since it is larger than the sum of its proper divisors (87793683).

242723181 is a wasteful number, since it uses less digits than its factorization.

242723181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721491.

The product of its digits is 5376, while the sum is 30.

The square root of 242723181 is about 15579.5757644424. The cubic root of 242723181 is about 623.7880993806.

The spelling of 242723181 in words is "two hundred forty-two million, seven hundred twenty-three thousand, one hundred eighty-one".