121633699 has 4 divisors (see below), whose sum is σ = 132691320. Its totient is φ = 110576080.

The previous prime is 121633679. The next prime is 121633703. The reversal of 121633699 is 996336121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121633699 - 2⁵ = 121633667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121633619) 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, 5528794 + ... + 5528815.

It is an arithmetic number, because the mean of its divisors is an integer number (33172830).

Almost surely, 2^121633699 is an apocalyptic number.

121633699 is a deficient number, since it is larger than the sum of its proper divisors (11057621).

121633699 is a wasteful number, since it uses less digits than its factorization.

121633699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11057620.

The product of its digits is 52488, while the sum is 40.

The square root of 121633699 is about 11028.7668848335. The cubic root of 121633699 is about 495.4706933180.

The spelling of 121633699 in words is "one hundred twenty-one million, six hundred thirty-three thousand, six hundred ninety-nine".