80646123 has 16 divisors (see below), whose sum is σ = 109555200. Its totient is φ = 52759200.

The previous prime is 80646103. The next prime is 80646161. The reversal of 80646123 is 32164608.

It is not a de Polignac number, because 80646123 - 2⁸ = 80645867 is a prime.

It is a super-2 number, since 2×80646123² = 13007594309862258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80646103) 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 15 ways as a sum of consecutive naturals, for example, 41473 + ... + 43373.

It is an arithmetic number, because the mean of its divisors is an integer number (6847200).

Almost surely, 2^80646123 is an apocalyptic number.

80646123 is a deficient number, since it is larger than the sum of its proper divisors (28909077).

80646123 is a wasteful number, since it uses less digits than its factorization.

80646123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 80646123 is about 8980.3186469078. The cubic root of 80646123 is about 432.0438537871.

The spelling of 80646123 in words is "eighty million, six hundred forty-six thousand, one hundred twenty-three".