80379121 has 2 divisors, whose sum is σ = 80379122. Its totient is φ = 80379120.

The previous prime is 80379119. The next prime is 80379127. The reversal of 80379121 is 12197308.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62410000 + 17969121 = 7900^2 + 4239^2 .

It is a cyclic number.

It is not a de Polignac number, because 80379121 - 2¹ = 80379119 is a prime.

Together with 80379119, it forms a pair of twin primes.

It is equal to p_4690192 and since 80379121 and 4690192 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (80379127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40189560 + 40189561.

It is an arithmetic number, because the mean of its divisors is an integer number (40189561).

Almost surely, 2^80379121 is an apocalyptic number.

It is an amenable number.

80379121 is a deficient number, since it is larger than the sum of its proper divisors (1).

80379121 is an equidigital number, since it uses as much as digits as its factorization.

80379121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 80379121 is about 8965.4403684370. The cubic root of 80379121 is about 431.5665251387.

The spelling of 80379121 in words is "eighty million, three hundred seventy-nine thousand, one hundred twenty-one".