121352249 has 2 divisors, whose sum is σ = 121352250. Its totient is φ = 121352248.

The previous prime is 121352233. The next prime is 121352263. The reversal of 121352249 is 942253121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117332224 + 4020025 = 10832^2 + 2005^2 .

It is a cyclic number.

It is not a de Polignac number, because 121352249 - 2⁴ = 121352233 is a prime.

It is not a weakly prime, because it can be changed into another prime (121352279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60676124 + 60676125.

It is an arithmetic number, because the mean of its divisors is an integer number (60676125).

Almost surely, 2^121352249 is an apocalyptic number.

It is an amenable number.

121352249 is a deficient number, since it is larger than the sum of its proper divisors (1).

121352249 is an equidigital number, since it uses as much as digits as its factorization.

121352249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 29.

The square root of 121352249 is about 11015.9996822803. Note that the first 3 decimals coincide. The cubic root of 121352249 is about 495.0882392094.

The spelling of 121352249 in words is "one hundred twenty-one million, three hundred fifty-two thousand, two hundred forty-nine".