161360543 has 8 divisors (see below), whose sum is σ = 166135200. Its totient is φ = 156625920.

The previous prime is 161360539. The next prime is 161360557. The reversal of 161360543 is 345063161.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 161360543 - 2² = 161360539 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 (161360743) 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, 1730 + ... + 18047.

It is an arithmetic number, because the mean of its divisors is an integer number (20766900).

Almost surely, 2^161360543 is an apocalyptic number.

161360543 is a deficient number, since it is larger than the sum of its proper divisors (4774657).

161360543 is a wasteful number, since it uses less digits than its factorization.

161360543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20017.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 161360543 is about 12702.7769798576. The cubic root of 161360543 is about 544.4179662983.

The spelling of 161360543 in words is "one hundred sixty-one million, three hundred sixty thousand, five hundred forty-three".