240261143 has 8 divisors (see below), whose sum is σ = 251111280. Its totient is φ = 229582080.

The previous prime is 240261121. The next prime is 240261173. The reversal of 240261143 is 341162042.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240261143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240261103) 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, 39893 + ... + 45518.

It is an arithmetic number, because the mean of its divisors is an integer number (31388910).

Almost surely, 2^240261143 is an apocalyptic number.

240261143 is a deficient number, since it is larger than the sum of its proper divisors (10850137).

240261143 is an equidigital number, since it uses as much as digits as its factorization.

240261143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85537.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 240261143 is about 15500.3594474451. The cubic root of 240261143 is about 621.6718172716.

The spelling of 240261143 in words is "two hundred forty million, two hundred sixty-one thousand, one hundred forty-three".