121830146 has 8 divisors (see below), whose sum is σ = 186193404. Its totient is φ = 59765680.

The previous prime is 121830133. The next prime is 121830167. The reversal of 121830146 is 641038121.

It can be written as a sum of positive squares in 2 ways, for example, as 112126921 + 9703225 = 10589^2 + 3115^2 .

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

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 574565 + ... + 574776.

Almost surely, 2^121830146 is an apocalyptic number.

121830146 is a deficient number, since it is larger than the sum of its proper divisors (64363258).

121830146 is a wasteful number, since it uses less digits than its factorization.

121830146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149396.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 121830146 is about 11037.6694097984. The cubic root of 121830146 is about 495.7372898801.

Adding to 121830146 its reverse (641038121), we get a palindrome (762868267).

The spelling of 121830146 in words is "one hundred twenty-one million, eight hundred thirty thousand, one hundred forty-six".