240199161 has 8 divisors (see below), whose sum is σ = 327713760. Its totient is φ = 156408672.

The previous prime is 240199147. The next prime is 240199217. The reversal of 240199161 is 161991042.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 240199161 - 2⁹ = 240198649 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (240199061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 930876 + ... + 931133.

It is an arithmetic number, because the mean of its divisors is an integer number (40964220).

Almost surely, 2^240199161 is an apocalyptic number.

It is an amenable number.

240199161 is a deficient number, since it is larger than the sum of its proper divisors (87514599).

240199161 is a wasteful number, since it uses less digits than its factorization.

240199161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862055.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 240199161 is about 15498.3599454910. The cubic root of 240199161 is about 621.6183535333.

The spelling of 240199161 in words is "two hundred forty million, one hundred ninety-nine thousand, one hundred sixty-one".