121733913 has 16 divisors (see below), whose sum is σ = 185655680. Its totient is φ = 69503616.

The previous prime is 121733897. The next prime is 121733939. The reversal of 121733913 is 319337121.

It is not a de Polignac number, because 121733913 - 2⁴ = 121733897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121733113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41181 + ... + 44037.

It is an arithmetic number, because the mean of its divisors is an integer number (11603480).

Almost surely, 2^121733913 is an apocalyptic number.

It is an amenable number.

121733913 is a deficient number, since it is larger than the sum of its proper divisors (63921767).

121733913 is a wasteful number, since it uses less digits than its factorization.

121733913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4896.

The product of its digits is 3402, while the sum is 30.

The square root of 121733913 is about 11033.3092497220. The cubic root of 121733913 is about 495.6067287268.

The spelling of 121733913 in words is "one hundred twenty-one million, seven hundred thirty-three thousand, nine hundred thirteen".