80148909 has 8 divisors (see below), whose sum is σ = 106972992. Its totient is φ = 53378720.

The previous prime is 80148883. The next prime is 80148911. The reversal of 80148909 is 90984108.

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

It is a cyclic number.

It is not a de Polignac number, because 80148909 - 2⁵ = 80148877 is a prime.

It is a super-2 number, since 2×80148909² = 12847695227780562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80148949) 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, 9864 + ... + 16049.

It is an arithmetic number, because the mean of its divisors is an integer number (13371624).

Almost surely, 2^80148909 is an apocalyptic number.

It is an amenable number.

80148909 is a deficient number, since it is larger than the sum of its proper divisors (26824083).

80148909 is a wasteful number, since it uses less digits than its factorization.

80148909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26947.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 80148909 is about 8952.5923061424. The cubic root of 80148909 is about 431.1541178981.

The spelling of 80148909 in words is "eighty million, one hundred forty-eight thousand, nine hundred nine".