80148721 has 8 divisors (see below), whose sum is σ = 86518080. Its totient is φ = 74019792.

The previous prime is 80148709. The next prime is 80148769. The reversal of 80148721 is 12784108.

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 80148721 - 2¹⁷ = 80017649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80148781) 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, 59415 + ... + 60748.

It is an arithmetic number, because the mean of its divisors is an integer number (10814760).

Almost surely, 2^80148721 is an apocalyptic number.

It is an amenable number.

80148721 is a deficient number, since it is larger than the sum of its proper divisors (6369359).

80148721 is a wasteful number, since it uses less digits than its factorization.

80148721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120215.

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 80148721 is about 8952.5818063841. The cubic root of 80148721 is about 431.1537807879.

The spelling of 80148721 in words is "eighty million, one hundred forty-eight thousand, seven hundred twenty-one".