80543453 has 2 divisors, whose sum is σ = 80543454. Its totient is φ = 80543452.

The previous prime is 80543443. The next prime is 80543471. The reversal of 80543453 is 35434508.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51523684 + 29019769 = 7178^2 + 5387^2 .

It is a cyclic number.

It is not a de Polignac number, because 80543453 - 2⁶ = 80543389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80543443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40271726 + 40271727.

It is an arithmetic number, because the mean of its divisors is an integer number (40271727).

Almost surely, 2^80543453 is an apocalyptic number.

It is an amenable number.

80543453 is a deficient number, since it is larger than the sum of its proper divisors (1).

80543453 is an equidigital number, since it uses as much as digits as its factorization.

80543453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 80543453 is about 8974.6004367883. The cubic root of 80543453 is about 431.8604319516.

The spelling of 80543453 in words is "eighty million, five hundred forty-three thousand, four hundred fifty-three".