121433416 has 32 divisors (see below), whose sum is σ = 247395960. Its totient is φ = 55544832.

The previous prime is 121433369. The next prime is 121433437. The reversal of 121433416 is 614334121.

It can be written as a sum of positive squares in 4 ways, for example, as 60124516 + 61308900 = 7754^2 + 7830^2 .

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6586 + ... + 16918.

Almost surely, 2^121433416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121433416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123697980).

121433416 is an abundant number, since it is smaller than the sum of its proper divisors (125962544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121433416 is a wasteful number, since it uses less digits than its factorization.

121433416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10465 (or 10461 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 121433416 is about 11019.6831170411. The cubic root of 121433416 is about 495.1985952775.

Adding to 121433416 its reverse (614334121), we get a palindrome (735767537).

The spelling of 121433416 in words is "one hundred twenty-one million, four hundred thirty-three thousand, four hundred sixteen".