121470161 has 2 divisors, whose sum is σ = 121470162. Its totient is φ = 121470160.

The previous prime is 121470133. The next prime is 121470187. The reversal of 121470161 is 161074121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118810000 + 2660161 = 10900^2 + 1631^2 .

It is a cyclic number.

It is not a de Polignac number, because 121470161 - 2¹⁰ = 121469137 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (121470131) 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, 60735080 + 60735081.

It is an arithmetic number, because the mean of its divisors is an integer number (60735081).

Almost surely, 2^121470161 is an apocalyptic number.

It is an amenable number.

121470161 is a deficient number, since it is larger than the sum of its proper divisors (1).

121470161 is an equidigital number, since it uses as much as digits as its factorization.

121470161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 121470161 is about 11021.3502348850. The cubic root of 121470161 is about 495.2485382503.

The spelling of 121470161 in words is "one hundred twenty-one million, four hundred seventy thousand, one hundred sixty-one".