654613161 has 4 divisors (see below), whose sum is σ = 872817552. Its totient is φ = 436408772.

The previous prime is 654613153. The next prime is 654613163. The reversal of 654613161 is 161316456.

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 654613161 - 2³ = 654613153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (654613163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109102191 + ... + 109102196.

It is an arithmetic number, because the mean of its divisors is an integer number (218204388).

Almost surely, 2^654613161 is an apocalyptic number.

It is an amenable number.

654613161 is a deficient number, since it is larger than the sum of its proper divisors (218204391).

654613161 is a wasteful number, since it uses less digits than its factorization.

654613161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218204390.

The product of its digits is 12960, while the sum is 33.

The square root of 654613161 is about 25585.4091427126. The cubic root of 654613161 is about 868.2835586165.

The spelling of 654613161 in words is "six hundred fifty-four million, six hundred thirteen thousand, one hundred sixty-one".