121399346 has 8 divisors (see below), whose sum is σ = 192810780. Its totient is φ = 57129088.

The previous prime is 121399321. The next prime is 121399357. The reversal of 121399346 is 643993121.

It can be written as a sum of positive squares in 2 ways, for example, as 117831025 + 3568321 = 10855^2 + 1889^2 .

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, 1785251 + ... + 1785318.

Almost surely, 2^121399346 is an apocalyptic number.

121399346 is a deficient number, since it is larger than the sum of its proper divisors (71411434).

121399346 is a wasteful number, since it uses less digits than its factorization.

121399346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3570588.

The product of its digits is 34992, while the sum is 38.

The square root of 121399346 is about 11018.1371383733. The cubic root of 121399346 is about 495.1522791020.

The spelling of 121399346 in words is "one hundred twenty-one million, three hundred ninety-nine thousand, three hundred forty-six".