79121033 has 2 divisors, whose sum is σ = 79121034. Its totient is φ = 79121032.

The previous prime is 79121011. The next prime is 79121041. The reversal of 79121033 is 33012197.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74511424 + 4609609 = 8632^2 + 2147^2 .

It is a cyclic number.

It is not a de Polignac number, because 79121033 - 2⁸ = 79120777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79120993 and 79121011.

It is not a weakly prime, because it can be changed into another prime (79141033) 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 as a sum of consecutive naturals, namely, 39560516 + 39560517.

It is an arithmetic number, because the mean of its divisors is an integer number (39560517).

Almost surely, 2^79121033 is an apocalyptic number.

It is an amenable number.

79121033 is a deficient number, since it is larger than the sum of its proper divisors (1).

79121033 is an equidigital number, since it uses as much as digits as its factorization.

79121033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 79121033 is about 8895.0004496908. Note that the first 3 decimals coincide. The cubic root of 79121033 is about 429.3030588620.

The spelling of 79121033 in words is "seventy-nine million, one hundred twenty-one thousand, thirty-three".