80243523 has 12 divisors (see below), whose sum is σ = 118374048. Its totient is φ = 52357200.

The previous prime is 80243509. The next prime is 80243543. The reversal of 80243523 is 32534208.

It is not a de Polignac number, because 80243523 - 2⁶ = 80243459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80243543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94428 + ... + 95273.

It is an arithmetic number, because the mean of its divisors is an integer number (9864504).

Almost surely, 2^80243523 is an apocalyptic number.

80243523 is a deficient number, since it is larger than the sum of its proper divisors (38130525).

80243523 is a wasteful number, since it uses less digits than its factorization.

80243523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189754 (or 189751 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 80243523 is about 8957.8749154026. The cubic root of 80243523 is about 431.3237071244.

The spelling of 80243523 in words is "eighty million, two hundred forty-three thousand, five hundred twenty-three".