80339121 has 30 divisors (see below), whose sum is σ = 122893650. Its totient is φ = 52303104.

The previous prime is 80339113. The next prime is 80339123. The reversal of 80339121 is 12193308.

It can be written as a sum of positive squares in only one way, i.e., 71571600 + 8767521 = 8460^2 + 2961^2 .

It is not a de Polignac number, because 80339121 - 2³ = 80339113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (80339123) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 178705 + ... + 179153.

It is an arithmetic number, because the mean of its divisors is an integer number (4096455).

Almost surely, 2^80339121 is an apocalyptic number.

80339121 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

80339121 is a deficient number, since it is larger than the sum of its proper divisors (42554529).

80339121 is an equidigital number, since it uses as much as digits as its factorization.

80339121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555 (or 499 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 80339121 is about 8963.2093024764. The cubic root of 80339121 is about 431.4949247649.

The spelling of 80339121 in words is "eighty million, three hundred thirty-nine thousand, one hundred twenty-one".