121764424 has 16 divisors (see below), whose sum is σ = 233877420. Its totient is φ = 59397120.

The previous prime is 121764413. The next prime is 121764427. The reversal of 121764424 is 424467121.

It can be written as a sum of positive squares in 2 ways, for example, as 103428900 + 18335524 = 10170^2 + 4282^2 .

It is not an unprimeable number, because it can be changed into a prime (121764427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185289 + ... + 185944.

Almost surely, 2^121764424 is an apocalyptic number.

It is an amenable number.

121764424 is a deficient number, since it is larger than the sum of its proper divisors (112112996).

121764424 is a wasteful number, since it uses less digits than its factorization.

121764424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371280 (or 371276 counting only the distinct ones).

The product of its digits is 10752, while the sum is 31.

The square root of 121764424 is about 11034.6918398295. The cubic root of 121764424 is about 495.6481310317.

The spelling of 121764424 in words is "one hundred twenty-one million, seven hundred sixty-four thousand, four hundred twenty-four".