121280735 has 8 divisors (see below), whose sum is σ = 145596096. Its totient is φ = 96985120.

The previous prime is 121280701. The next prime is 121280741. The reversal of 121280735 is 537082121.

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

It is not a de Polignac number, because 121280735 - 2⁶ = 121280671 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121280698 and 121280707.

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, 20570 + ... + 25800.

It is an arithmetic number, because the mean of its divisors is an integer number (18199512).

Almost surely, 2^121280735 is an apocalyptic number.

121280735 is a deficient number, since it is larger than the sum of its proper divisors (24315361).

121280735 is an equidigital number, since it uses as much as digits as its factorization.

121280735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9873.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 121280735 is about 11012.7532888011. The cubic root of 121280735 is about 494.9909667433.

The spelling of 121280735 in words is "one hundred twenty-one million, two hundred eighty thousand, seven hundred thirty-five".