121000636 has 6 divisors (see below), whose sum is σ = 211751120. Its totient is φ = 60500316.

The previous prime is 121000603. The next prime is 121000651. The reversal of 121000636 is 636000121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15125076 + ... + 15125083.

Almost surely, 2^121000636 is an apocalyptic number.

It is an amenable number.

121000636 is a deficient number, since it is larger than the sum of its proper divisors (90750484).

121000636 is a wasteful number, since it uses less digits than its factorization.

121000636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30250163 (or 30250161 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 121000636 is about 11000.0289090529. The cubic root of 121000636 is about 494.6096109106.

Adding to 121000636 its reverse (636000121), we get a palindrome (757000757).

The spelling of 121000636 in words is "one hundred twenty-one million, six hundred thirty-six", and thus it is an aban number.