242265145 has 4 divisors (see below), whose sum is σ = 290718180. Its totient is φ = 193812112.

The previous prime is 242265137. The next prime is 242265161. The reversal of 242265145 is 541562242.

242265145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 102576384 + 139688761 = 10128^2 + 11819^2 .

It is a cyclic number.

It is not a de Polignac number, because 242265145 - 2³ = 242265137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24226510 + ... + 24226519.

It is an arithmetic number, because the mean of its divisors is an integer number (72679545).

Almost surely, 2^242265145 is an apocalyptic number.

It is an amenable number.

242265145 is a deficient number, since it is larger than the sum of its proper divisors (48453035).

242265145 is an equidigital number, since it uses as much as digits as its factorization.

242265145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48453034.

The product of its digits is 19200, while the sum is 31.

The square root of 242265145 is about 15564.8689361652. The cubic root of 242265145 is about 623.3954747228.

The spelling of 242265145 in words is "two hundred forty-two million, two hundred sixty-five thousand, one hundred forty-five".