80149623 has 4 divisors (see below), whose sum is σ = 106866168. Its totient is φ = 53433080.

The previous prime is 80149609. The next prime is 80149627. The reversal of 80149623 is 32694108.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80149623 - 2¹⁰ = 80148599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80149627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13358268 + ... + 13358273.

It is an arithmetic number, because the mean of its divisors is an integer number (26716542).

Almost surely, 2^80149623 is an apocalyptic number.

80149623 is a deficient number, since it is larger than the sum of its proper divisors (26716545).

80149623 is a wasteful number, since it uses less digits than its factorization.

80149623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26716544.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 80149623 is about 8952.6321827717. The cubic root of 80149623 is about 431.1553981946.

The spelling of 80149623 in words is "eighty million, one hundred forty-nine thousand, six hundred twenty-three".