121533079 has 2 divisors, whose sum is σ = 121533080. Its totient is φ = 121533078.

The previous prime is 121533059. The next prime is 121533091. The reversal of 121533079 is 970335121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121533079 - 2¹⁷ = 121402007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121533079.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121533029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60766539 + 60766540.

It is an arithmetic number, because the mean of its divisors is an integer number (60766540).

Almost surely, 2^121533079 is an apocalyptic number.

121533079 is a deficient number, since it is larger than the sum of its proper divisors (1).

121533079 is an equidigital number, since it uses as much as digits as its factorization.

121533079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 121533079 is about 11024.2042343200. The cubic root of 121533079 is about 495.3340315896.

The spelling of 121533079 in words is "one hundred twenty-one million, five hundred thirty-three thousand, seventy-nine".