121252049 has 2 divisors, whose sum is σ = 121252050. Its totient is φ = 121252048.

The previous prime is 121252039. The next prime is 121252069. The reversal of 121252049 is 940252121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115175824 + 6076225 = 10732^2 + 2465^2 .

It is a cyclic number.

It is not a de Polignac number, because 121252049 - 2¹² = 121247953 is a prime.

It is not a weakly prime, because it can be changed into another prime (121252009) 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, 60626024 + 60626025.

It is an arithmetic number, because the mean of its divisors is an integer number (60626025).

Almost surely, 2^121252049 is an apocalyptic number.

It is an amenable number.

121252049 is a deficient number, since it is larger than the sum of its proper divisors (1).

121252049 is an equidigital number, since it uses as much as digits as its factorization.

121252049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 121252049 is about 11011.4508126768. The cubic root of 121252049 is about 494.9519376523.

The spelling of 121252049 in words is "one hundred twenty-one million, two hundred fifty-two thousand, forty-nine".