121405346 has 8 divisors (see below), whose sum is σ = 186549804. Its totient is φ = 59222080.

The previous prime is 121405337. The next prime is 121405357. The reversal of 121405346 is 643504121.

It can be written as a sum of positive squares in 2 ways, for example, as 83521321 + 37884025 = 9139^2 + 6155^2 .

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 740195 + ... + 740358.

Almost surely, 2^121405346 is an apocalyptic number.

121405346 is a deficient number, since it is larger than the sum of its proper divisors (65144458).

121405346 is a wasteful number, since it uses less digits than its factorization.

121405346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480596.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 121405346 is about 11018.4094133409. The cubic root of 121405346 is about 495.1604363803.

Adding to 121405346 its reverse (643504121), we get a palindrome (764909467).

The spelling of 121405346 in words is "one hundred twenty-one million, four hundred five thousand, three hundred forty-six".