240613161 has 4 divisors (see below), whose sum is σ = 320817552. Its totient is φ = 160408772.

The previous prime is 240613141. The next prime is 240613171. The reversal of 240613161 is 161316042.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 240613161 - 2⁵ = 240613129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (240613141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40102191 + ... + 40102196.

It is an arithmetic number, because the mean of its divisors is an integer number (80204388).

Almost surely, 2^240613161 is an apocalyptic number.

It is an amenable number.

240613161 is a deficient number, since it is larger than the sum of its proper divisors (80204391).

240613161 is an equidigital number, since it uses as much as digits as its factorization.

240613161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80204390.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 240613161 is about 15511.7104472718. The cubic root of 240613161 is about 621.9752827376.

The spelling of 240613161 in words is "two hundred forty million, six hundred thirteen thousand, one hundred sixty-one".