80530121 has 4 divisors (see below), whose sum is σ = 92034432. Its totient is φ = 69025812.

The previous prime is 80530111. The next prime is 80530123. The reversal of 80530121 is 12103508.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80530121 - 2⁶ = 80530057 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 80530093 and 80530102.

It is not an unprimeable number, because it can be changed into a prime (80530123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5752145 + ... + 5752158.

It is an arithmetic number, because the mean of its divisors is an integer number (23008608).

Almost surely, 2^80530121 is an apocalyptic number.

It is an amenable number.

80530121 is a deficient number, since it is larger than the sum of its proper divisors (11504311).

80530121 is a wasteful number, since it uses less digits than its factorization.

80530121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11504310.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 80530121 is about 8973.8576431767. The cubic root of 80530121 is about 431.8366026571.

Adding to 80530121 its reverse (12103508), we get a palindrome (92633629).

The spelling of 80530121 in words is "eighty million, five hundred thirty thousand, one hundred twenty-one".