121664162 has 16 divisors (see below), whose sum is σ = 185398200. Its totient is φ = 59872512.

The previous prime is 121664143. The next prime is 121664171. The reversal of 121664162 is 261466121.

It can be written as a sum of positive squares in 4 ways, for example, as 7623121 + 114041041 = 2761^2 + 10679^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31868 + ... + 35480.

Almost surely, 2^121664162 is an apocalyptic number.

121664162 is a deficient number, since it is larger than the sum of its proper divisors (63734038).

121664162 is a wasteful number, since it uses less digits than its factorization.

121664162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3877.

The product of its digits is 3456, while the sum is 29.

The square root of 121664162 is about 11030.1478684558. The cubic root of 121664162 is about 495.5120531932.

The spelling of 121664162 in words is "one hundred twenty-one million, six hundred sixty-four thousand, one hundred sixty-two".