121246253 has 2 divisors, whose sum is σ = 121246254. Its totient is φ = 121246252.

The previous prime is 121246249. The next prime is 121246291. The reversal of 121246253 is 352642121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101868649 + 19377604 = 10093^2 + 4402^2 .

It is a cyclic number.

It is not a de Polignac number, because 121246253 - 2² = 121246249 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121246453) 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, 60623126 + 60623127.

It is an arithmetic number, because the mean of its divisors is an integer number (60623127).

Almost surely, 2^121246253 is an apocalyptic number.

It is an amenable number.

121246253 is a deficient number, since it is larger than the sum of its proper divisors (1).

121246253 is an equidigital number, since it uses as much as digits as its factorization.

121246253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 26.

The square root of 121246253 is about 11011.1876289527. The cubic root of 121246253 is about 494.9440510855.

Adding to 121246253 its reverse (352642121), we get a palindrome (473888374).

The spelling of 121246253 in words is "one hundred twenty-one million, two hundred forty-six thousand, two hundred fifty-three".