121836633 has 4 divisors (see below), whose sum is σ = 162448848. Its totient is φ = 81224420.

The previous prime is 121836629. The next prime is 121836647. The reversal of 121836633 is 336638121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 336638121 = 3 ⋅112212707.

It is a cyclic number.

It is not a de Polignac number, because 121836633 - 2² = 121836629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121836594 and 121836603.

It is not an unprimeable number, because it can be changed into a prime (121836623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20306103 + ... + 20306108.

It is an arithmetic number, because the mean of its divisors is an integer number (40612212).

Almost surely, 2^121836633 is an apocalyptic number.

It is an amenable number.

121836633 is a deficient number, since it is larger than the sum of its proper divisors (40612215).

121836633 is an equidigital number, since it uses as much as digits as its factorization.

121836633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40612214.

The product of its digits is 15552, while the sum is 33.

The square root of 121836633 is about 11037.9632632112. The cubic root of 121836633 is about 495.7460884433.

The spelling of 121836633 in words is "one hundred twenty-one million, eight hundred thirty-six thousand, six hundred thirty-three".