121452649 has 2 divisors, whose sum is σ = 121452650. Its totient is φ = 121452648.

The previous prime is 121452631. The next prime is 121452659. The reversal of 121452649 is 946254121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120297024 + 1155625 = 10968^2 + 1075^2 .

It is a cyclic number.

It is not a de Polignac number, because 121452649 - 2⁹ = 121452137 is a prime.

It is not a weakly prime, because it can be changed into another prime (121452659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60726324 + 60726325.

It is an arithmetic number, because the mean of its divisors is an integer number (60726325).

Almost surely, 2^121452649 is an apocalyptic number.

It is an amenable number.

121452649 is a deficient number, since it is larger than the sum of its proper divisors (1).

121452649 is an equidigital number, since it uses as much as digits as its factorization.

121452649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 34.

The square root of 121452649 is about 11020.5557482370. Note that the first 3 decimals coincide. The cubic root of 121452649 is about 495.2247375925.

The spelling of 121452649 in words is "one hundred twenty-one million, four hundred fifty-two thousand, six hundred forty-nine".