121532116 has 12 divisors (see below), whose sum is σ = 225191988. Its totient is φ = 57191552.

The previous prime is 121532071. The next prime is 121532119. The reversal of 121532116 is 611235121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 53963716 + 67568400 = 7346^2 + 8220^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121532119) 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 3 ways as a sum of consecutive naturals, for example, 893551 + ... + 893686.

It is an arithmetic number, because the mean of its divisors is an integer number (18765999).

Almost surely, 2^121532116 is an apocalyptic number.

It is an amenable number.

121532116 is a deficient number, since it is larger than the sum of its proper divisors (103659872).

121532116 is a wasteful number, since it uses less digits than its factorization.

121532116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787258 (or 1787256 counting only the distinct ones).

The product of its digits is 360, while the sum is 22.

The square root of 121532116 is about 11024.1605576116. The cubic root of 121532116 is about 495.3327232821.

Adding to 121532116 its reverse (611235121), we get a palindrome (732767237).

The spelling of 121532116 in words is "one hundred twenty-one million, five hundred thirty-two thousand, one hundred sixteen".