161167361 has 8 divisors (see below), whose sum is σ = 173196000. Its totient is φ = 149421888.

The previous prime is 161167339. The next prime is 161167381. The reversal of 161167361 is 163761161.

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-161167361 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (161167381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69611 + ... + 71888.

It is an arithmetic number, because the mean of its divisors is an integer number (21649500).

Almost surely, 2^161167361 is an apocalyptic number.

It is an amenable number.

161167361 is a deficient number, since it is larger than the sum of its proper divisors (12028639).

161167361 is a wasteful number, since it uses less digits than its factorization.

161167361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141583.

The product of its digits is 4536, while the sum is 32.

The square root of 161167361 is about 12695.1707747474. The cubic root of 161167361 is about 544.2006191734.

The spelling of 161167361 in words is "one hundred sixty-one million, one hundred sixty-seven thousand, three hundred sixty-one".