242586145 has 8 divisors (see below), whose sum is σ = 291886056. Its totient is φ = 193547136.

The previous prime is 242586137. The next prime is 242586161. The reversal of 242586145 is 541685242.

It can be written as a sum of positive squares in 4 ways, for example, as 13608721 + 228977424 = 3689^2 + 15132^2 .

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 242586145 - 2³ = 242586137 is a prime.

It is a super-2 number, since 2×242586145² = 117696075491922050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63172 + ... + 66901.

It is an arithmetic number, because the mean of its divisors is an integer number (36485757).

Almost surely, 2^242586145 is an apocalyptic number.

It is an amenable number.

242586145 is a deficient number, since it is larger than the sum of its proper divisors (49299911).

242586145 is a wasteful number, since it uses less digits than its factorization.

242586145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130451.

The product of its digits is 76800, while the sum is 37.

The square root of 242586145 is about 15575.1772060545. The cubic root of 242586145 is about 623.6706850794.

It can be divided in two parts, 24258 and 6145, that added together give a palindrome (30403).

The spelling of 242586145 in words is "two hundred forty-two million, five hundred eighty-six thousand, one hundred forty-five".