240534161 has 16 divisors (see below), whose sum is σ = 287539200. Its totient is φ = 196733328.

The previous prime is 240534157. The next prime is 240534169. The reversal of 240534161 is 161435042.

It is a cyclic number.

It is not a de Polignac number, because 240534161 - 2² = 240534157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 240534161.

It is not an unprimeable number, because it can be changed into a prime (240534169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75560 + ... + 78678.

It is an arithmetic number, because the mean of its divisors is an integer number (17971200).

Almost surely, 2^240534161 is an apocalyptic number.

It is an amenable number.

240534161 is a deficient number, since it is larger than the sum of its proper divisors (47005039).

240534161 is a wasteful number, since it uses less digits than its factorization.

240534161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3628.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 240534161 is about 15509.1637750073. The cubic root of 240534161 is about 621.9072046856.

The spelling of 240534161 in words is "two hundred forty million, five hundred thirty-four thousand, one hundred sixty-one".