80406123 has 16 divisors (see below), whose sum is σ = 122680320. Its totient is φ = 45887616.

The previous prime is 80406101. The next prime is 80406133. The reversal of 80406123 is 32160408.

It is a happy number.

It is not a de Polignac number, because 80406123 - 2¹⁰ = 80405099 is a prime.

It is a super-2 number, since 2×80406123² = 12930289231782258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80406093 and 80406102.

It is not an unprimeable number, because it can be changed into a prime (80406133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18558 + ... + 22476.

It is an arithmetic number, because the mean of its divisors is an integer number (7667520).

Almost surely, 2^80406123 is an apocalyptic number.

80406123 is a deficient number, since it is larger than the sum of its proper divisors (42274197).

80406123 is a wasteful number, since it uses less digits than its factorization.

80406123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4906.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 80406123 is about 8966.9461356696. The cubic root of 80406123 is about 431.6148455421.

The spelling of 80406123 in words is "eighty million, four hundred six thousand, one hundred twenty-three".