80145804 has 12 divisors (see below), whose sum is σ = 187006904. Its totient is φ = 26715264.

The previous prime is 80145787. The next prime is 80145809. The reversal of 80145804 is 40854108.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (80145809) 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, 3339397 + ... + 3339420.

Almost surely, 2^80145804 is an apocalyptic number.

It is an amenable number.

80145804 is an abundant number, since it is smaller than the sum of its proper divisors (106861100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80145804 is a wasteful number, since it uses less digits than its factorization.

80145804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6678824 (or 6678822 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 80145804 is about 8952.4188910037. The cubic root of 80145804 is about 431.1485501332.

The spelling of 80145804 in words is "eighty million, one hundred forty-five thousand, eight hundred four".