80354143 has 4 divisors (see below), whose sum is σ = 82222888. Its totient is φ = 78485400.

The previous prime is 80354129. The next prime is 80354149. The reversal of 80354143 is 34145308.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80354143 - 2⁹ = 80353631 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 (80354149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 934308 + ... + 934393.

It is an arithmetic number, because the mean of its divisors is an integer number (20555722).

Almost surely, 2^80354143 is an apocalyptic number.

80354143 is a deficient number, since it is larger than the sum of its proper divisors (1868745).

80354143 is a wasteful number, since it uses less digits than its factorization.

80354143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868744.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 80354143 is about 8964.0472444092. The cubic root of 80354143 is about 431.5218170714.

It can be divided in two parts, 803 and 54143, that added together give a triangular number (54946 = T₃₃₁).

The spelling of 80354143 in words is "eighty million, three hundred fifty-four thousand, one hundred forty-three".