121477141 has 2 divisors, whose sum is σ = 121477142. Its totient is φ = 121477140.

The previous prime is 121477063. The next prime is 121477157. The reversal of 121477141 is 141774121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115455025 + 6022116 = 10745^2 + 2454^2 .

It is a cyclic number.

It is not a de Polignac number, because 121477141 - 2⁹ = 121476629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121477841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60738570 + 60738571.

It is an arithmetic number, because the mean of its divisors is an integer number (60738571).

Almost surely, 2^121477141 is an apocalyptic number.

It is an amenable number.

121477141 is a deficient number, since it is larger than the sum of its proper divisors (1).

121477141 is an equidigital number, since it uses as much as digits as its factorization.

121477141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1568, while the sum is 28.

The square root of 121477141 is about 11021.6668884520. Note that the first 3 decimals coincide. The cubic root of 121477141 is about 495.2580241700.

The spelling of 121477141 in words is "one hundred twenty-one million, four hundred seventy-seven thousand, one hundred forty-one".