240006145 has 4 divisors (see below), whose sum is σ = 288007380. Its totient is φ = 192004912.

The previous prime is 240006131. The next prime is 240006191. The reversal of 240006145 is 541600042.

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 56972304 + 183033841 = 7548^2 + 13529^2 .

It is a cyclic number.

It is not a de Polignac number, because 240006145 - 2⁵ = 240006113 is a prime.

It is a super-2 number, since 2×240006145² = 115205899275522050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24000610 + ... + 24000619.

It is an arithmetic number, because the mean of its divisors is an integer number (72001845).

Almost surely, 2^240006145 is an apocalyptic number.

It is an amenable number.

240006145 is a deficient number, since it is larger than the sum of its proper divisors (48001235).

240006145 is an equidigital number, since it uses as much as digits as its factorization.

240006145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48001234.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 240006145 is about 15492.1317125824. The cubic root of 240006145 is about 621.4518050188.

Adding to 240006145 its reverse (541600042), we get a palindrome (781606187).

The spelling of 240006145 in words is "two hundred forty million, six thousand, one hundred forty-five".