80161943 has 8 divisors (see below), whose sum is σ = 83726160. Its totient is φ = 76671360.

The previous prime is 80161927. The next prime is 80161973. The reversal of 80161943 is 34916108.

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 80161943 - 2⁴ = 80161927 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 (80161903) 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, 16178 + ... + 20543.

It is an arithmetic number, because the mean of its divisors is an integer number (10465770).

Almost surely, 2^80161943 is an apocalyptic number.

80161943 is a deficient number, since it is larger than the sum of its proper divisors (3564217).

80161943 is a wasteful number, since it uses less digits than its factorization.

80161943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36817.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 80161943 is about 8953.3202221299. The cubic root of 80161943 is about 431.1774883895.

The spelling of 80161943 in words is "eighty million, one hundred sixty-one thousand, nine hundred forty-three".