240065137 has 4 divisors (see below), whose sum is σ = 258531700. Its totient is φ = 221598576.

The previous prime is 240065131. The next prime is 240065141. The reversal of 240065137 is 731560042.

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 15335056 + 224730081 = 3916^2 + 14991^2 .

It is a cyclic number.

It is not a de Polignac number, because 240065137 - 2¹⁵ = 240032369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240065131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9233262 + ... + 9233287.

It is an arithmetic number, because the mean of its divisors is an integer number (64632925).

Almost surely, 2^240065137 is an apocalyptic number.

It is an amenable number.

240065137 is a deficient number, since it is larger than the sum of its proper divisors (18466563).

240065137 is a wasteful number, since it uses less digits than its factorization.

240065137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18466562.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 240065137 is about 15494.0355298418. The cubic root of 240065137 is about 621.5027171619.

The spelling of 240065137 in words is "two hundred forty million, sixty-five thousand, one hundred thirty-seven".