162418121 has 2 divisors, whose sum is σ = 162418122. Its totient is φ = 162418120.

The previous prime is 162418093. The next prime is 162418133. The reversal of 162418121 is 121814261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145926400 + 16491721 = 12080^2 + 4061^2 .

It is a cyclic number.

It is not a de Polignac number, because 162418121 - 2⁶ = 162418057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (162418171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81209060 + 81209061.

It is an arithmetic number, because the mean of its divisors is an integer number (81209061).

Almost surely, 2^162418121 is an apocalyptic number.

It is an amenable number.

162418121 is a deficient number, since it is larger than the sum of its proper divisors (1).

162418121 is an equidigital number, since it uses as much as digits as its factorization.

162418121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 768, while the sum is 26.

The square root of 162418121 is about 12744.3368207216. The cubic root of 162418121 is about 545.6047726371.

It can be divided in two parts, 16241 and 8121, that multiplied together give a triangular number (131893161 = T₁₆₂₄₁).

The spelling of 162418121 in words is "one hundred sixty-two million, four hundred eighteen thousand, one hundred twenty-one".