80205145 has 8 divisors (see below), whose sum is σ = 97464960. Its totient is φ = 63351600.

The previous prime is 80205127. The next prime is 80205149. The reversal of 80205145 is 54150208.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80205145 - 2⁵ = 80205113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80205149) 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, 101131 + ... + 101920.

It is an arithmetic number, because the mean of its divisors is an integer number (12183120).

Almost surely, 2^80205145 is an apocalyptic number.

It is an amenable number.

80205145 is a deficient number, since it is larger than the sum of its proper divisors (17259815).

80205145 is a wasteful number, since it uses less digits than its factorization.

80205145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203135.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 80205145 is about 8955.7325216869. The cubic root of 80205145 is about 431.2549332209.

The spelling of 80205145 in words is "eighty million, two hundred five thousand, one hundred forty-five".