121543036 has 6 divisors (see below), whose sum is σ = 212700320. Its totient is φ = 60771516.

The previous prime is 121543027. The next prime is 121543061. The reversal of 121543036 is 630345121.

It is a self number, because there is not a number n which added to its sum of digits gives 121543036.

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 as a sum of consecutive naturals, namely, 15192876 + ... + 15192883.

Almost surely, 2^121543036 is an apocalyptic number.

It is an amenable number.

121543036 is a deficient number, since it is larger than the sum of its proper divisors (91157284).

121543036 is a wasteful number, since it uses less digits than its factorization.

121543036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30385763 (or 30385761 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 121543036 is about 11024.6558222921. The cubic root of 121543036 is about 495.3475585139.

Adding to 121543036 its reverse (630345121), we get a palindrome (751888157).

The spelling of 121543036 in words is "one hundred twenty-one million, five hundred forty-three thousand, thirty-six".