121345135 has 8 divisors (see below), whose sum is σ = 150635520. Its totient is φ = 93728544.

The previous prime is 121345121. The next prime is 121345151. The reversal of 121345135 is 531543121.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121345135 is a prime.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 418287 + ... + 418576.

It is an arithmetic number, because the mean of its divisors is an integer number (18829440).

Almost surely, 2^121345135 is an apocalyptic number.

121345135 is a deficient number, since it is larger than the sum of its proper divisors (29290385).

121345135 is an equidigital number, since it uses as much as digits as its factorization.

121345135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836897.

The product of its digits is 1800, while the sum is 25.

The square root of 121345135 is about 11015.6767835662. The cubic root of 121345135 is about 495.0785645458.

Adding to 121345135 its reverse (531543121), we get a palindrome (652888256).

The spelling of 121345135 in words is "one hundred twenty-one million, three hundred forty-five thousand, one hundred thirty-five".