121435452 has 36 divisors (see below), whose sum is σ = 312170040. Its totient is φ = 39791712.

The previous prime is 121435439. The next prime is 121435453. The reversal of 121435452 is 254534121.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121435453) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 26463 + ... + 30710.

It is an arithmetic number, because the mean of its divisors is an integer number (8671390).

Almost surely, 2^121435452 is an apocalyptic number.

121435452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121435452 is an abundant number, since it is smaller than the sum of its proper divisors (190734588).

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

121435452 is a wasteful number, since it uses less digits than its factorization.

121435452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57242 (or 57237 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 121435452 is about 11019.7754968057. The cubic root of 121435452 is about 495.2013628263.

Adding to 121435452 its reverse (254534121), we get a palindrome (375969573).

The spelling of 121435452 in words is "one hundred twenty-one million, four hundred thirty-five thousand, four hundred fifty-two".