121339186 has 8 divisors (see below), whose sum is σ = 182068380. Its totient is φ = 60649728.

The previous prime is 121339171. The next prime is 121339189. The reversal of 121339186 is 681933121.

It can be written as a sum of positive squares in 2 ways, for example, as 115670025 + 5669161 = 10755^2 + 2381^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (121339189) 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 in 3 ways as a sum of consecutive naturals, for example, 511 + ... + 15586.

Almost surely, 2^121339186 is an apocalyptic number.

121339186 is a deficient number, since it is larger than the sum of its proper divisors (60729194).

121339186 is a wasteful number, since it uses less digits than its factorization.

121339186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19868.

The product of its digits is 7776, while the sum is 34.

The square root of 121339186 is about 11015.4067559941. The cubic root of 121339186 is about 495.0704739303.

The spelling of 121339186 in words is "one hundred twenty-one million, three hundred thirty-nine thousand, one hundred eighty-six".