242545345 has 12 divisors (see below), whose sum is σ = 338573844. Its totient is φ = 166316640.

The previous prime is 242545337. The next prime is 242545351. The reversal of 242545345 is 543545242.

It can be written as a sum of positive squares in 2 ways, for example, as 39425841 + 203119504 = 6279^2 + 14252^2 .

It is not a de Polignac number, because 242545345 - 2³ = 242545337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242545345.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 494746 + ... + 495235.

It is an arithmetic number, because the mean of its divisors is an integer number (28214487).

Almost surely, 2^242545345 is an apocalyptic number.

It is an amenable number.

242545345 is a deficient number, since it is larger than the sum of its proper divisors (96028499).

242545345 is an equidigital number, since it uses as much as digits as its factorization.

242545345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990000 (or 989993 counting only the distinct ones).

The product of its digits is 96000, while the sum is 34.

The square root of 242545345 is about 15573.8673745477. The cubic root of 242545345 is about 623.6357185446.

The spelling of 242545345 in words is "two hundred forty-two million, five hundred forty-five thousand, three hundred forty-five".