121195141 has 2 divisors, whose sum is σ = 121195142. Its totient is φ = 121195140.

The previous prime is 121195121. The next prime is 121195157. The reversal of 121195141 is 141591121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85840225 + 35354916 = 9265^2 + 5946^2 .

It is a cyclic number.

It is not a de Polignac number, because 121195141 - 2⁷ = 121195013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121195121) 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, 60597570 + 60597571.

It is an arithmetic number, because the mean of its divisors is an integer number (60597571).

Almost surely, 2^121195141 is an apocalyptic number.

It is an amenable number.

121195141 is a deficient number, since it is larger than the sum of its proper divisors (1).

121195141 is an equidigital number, since it uses as much as digits as its factorization.

121195141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 25.

The square root of 121195141 is about 11008.8664720760. The cubic root of 121195141 is about 494.8744925485.

The spelling of 121195141 in words is "one hundred twenty-one million, one hundred ninety-five thousand, one hundred forty-one".