121654452 has 48 divisors (see below), whose sum is σ = 297239040. Its totient is φ = 38652768.

The previous prime is 121654417. The next prime is 121654487. The reversal of 121654452 is 254456121.

It is an interprime number because it is at equal distance from previous prime (121654417) and next prime (121654487).

It is a congruent number.

It is an unprimeable number.

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, 104023 + ... + 105185.

It is an arithmetic number, because the mean of its divisors is an integer number (6192480).

Almost surely, 2^121654452 is an apocalyptic number.

121654452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121654452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148619520).

121654452 is an abundant number, since it is smaller than the sum of its proper divisors (175584588).

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

121654452 is a wasteful number, since it uses less digits than its factorization.

121654452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572 (or 1570 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 121654452 is about 11029.7077023827. The cubic root of 121654452 is about 495.4988705930.

The spelling of 121654452 in words is "one hundred twenty-one million, six hundred fifty-four thousand, four hundred fifty-two".