121245151 has 2 divisors, whose sum is σ = 121245152. Its totient is φ = 121245150.

The previous prime is 121245149. The next prime is 121245191. The reversal of 121245151 is 151542121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121245151 - 2¹ = 121245149 is a prime.

Together with 121245149, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121245191) 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, 60622575 + 60622576.

It is an arithmetic number, because the mean of its divisors is an integer number (60622576).

Almost surely, 2^121245151 is an apocalyptic number.

121245151 is a deficient number, since it is larger than the sum of its proper divisors (1).

121245151 is an equidigital number, since it uses as much as digits as its factorization.

121245151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 400, while the sum is 22.

The square root of 121245151 is about 11011.1375888234. The cubic root of 121245151 is about 494.9425515753.

Adding to 121245151 its reverse (151542121), we get a palindrome (272787272).

The spelling of 121245151 in words is "one hundred twenty-one million, two hundred forty-five thousand, one hundred fifty-one".