121454535150 has 144 divisors (see below), whose sum is σ = 354889473120. Its totient is φ = 29600352000.

The previous prime is 121454535131. The next prime is 121454535173. The reversal of 121454535150 is 51535454121.

121454535150 is a `hidden beast` number, since 1 + 2 + 1 + 454 + 53 + 5 + 150 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 488071 + ... + 693629.

It is an arithmetic number, because the mean of its divisors is an integer number (2464510230).

Almost surely, 2^121454535150 is an apocalyptic number.

121454535150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121454535150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177444736560).

121454535150 is an abundant number, since it is smaller than the sum of its proper divisors (233434937970).

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

121454535150 is a wasteful number, since it uses less digits than its factorization.

121454535150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205691 (or 205683 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

Adding to 121454535150 its reverse (51535454121), we get a palindrome (172989989271).

The spelling of 121454535150 in words is "one hundred twenty-one billion, four hundred fifty-four million, five hundred thirty-five thousand, one hundred fifty".