121304535 has 64 divisors (see below), whose sum is σ = 222082560. Its totient is φ = 56000000.

The previous prime is 121304501. The next prime is 121304551. The reversal of 121304535 is 535403121.

It is not a de Polignac number, because 121304535 - 2¹¹ = 121302487 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 (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 483160 + ... + 483410.

It is an arithmetic number, because the mean of its divisors is an integer number (3470040).

Almost surely, 2^121304535 is an apocalyptic number.

121304535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121304535 is a deficient number, since it is larger than the sum of its proper divisors (100778025).

121304535 is a wasteful number, since it uses less digits than its factorization.

121304535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 121304535 is about 11013.8338011793. The cubic root of 121304535 is about 495.0233434558.

Adding to 121304535 its reverse (535403121), we get a palindrome (656707656).

The spelling of 121304535 in words is "one hundred twenty-one million, three hundred four thousand, five hundred thirty-five".