242706145 has 8 divisors (see below), whose sum is σ = 317724480. Its totient is φ = 176513520.

The previous prime is 242706119. The next prime is 242706157. The reversal of 242706145 is 541607242.

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

It is not a de Polignac number, because 242706145 - 2⁹ = 242705633 is a prime.

It is a super-2 number, since 2×242706145² = 117812545641522050, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2206365 + ... + 2206474.

It is an arithmetic number, because the mean of its divisors is an integer number (39715560).

Almost surely, 2^242706145 is an apocalyptic number.

It is an amenable number.

242706145 is a deficient number, since it is larger than the sum of its proper divisors (75018335).

242706145 is a wasteful number, since it uses less digits than its factorization.

242706145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4412855.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 242706145 is about 15579.0290133885. The cubic root of 242706145 is about 623.7735051109.

The spelling of 242706145 in words is "two hundred forty-two million, seven hundred six thousand, one hundred forty-five".