121474621 has 2 divisors, whose sum is σ = 121474622. Its totient is φ = 121474620.

The previous prime is 121474601. The next prime is 121474627. The reversal of 121474621 is 126474121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67980025 + 53494596 = 8245^2 + 7314^2 .

It is an emirp because it is prime and its reverse (126474121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121474621 - 2¹¹ = 121472573 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121474621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121474627) 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, 60737310 + 60737311.

It is an arithmetic number, because the mean of its divisors is an integer number (60737311).

Almost surely, 2^121474621 is an apocalyptic number.

It is an amenable number.

121474621 is a deficient number, since it is larger than the sum of its proper divisors (1).

121474621 is an equidigital number, since it uses as much as digits as its factorization.

121474621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 28.

The square root of 121474621 is about 11021.5525675832. The cubic root of 121474621 is about 495.2545994959.

The spelling of 121474621 in words is "one hundred twenty-one million, four hundred seventy-four thousand, six hundred twenty-one".