121641006 has 8 divisors (see below), whose sum is σ = 243282024. Its totient is φ = 40547000.

The previous prime is 121640977. The next prime is 121641011. The reversal of 121641006 is 600146121.

It is a sphenic number, since it is the product of 3 distinct primes.

121641006 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10136745 + ... + 10136756.

It is an arithmetic number, because the mean of its divisors is an integer number (30410253).

Almost surely, 2^121641006 is an apocalyptic number.

121641006 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121641006 is a wasteful number, since it uses less digits than its factorization.

121641006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20273506.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 121641006 is about 11029.0981498942. The cubic root of 121641006 is about 495.4806147238.

Adding to 121641006 its reverse (600146121), we get a palindrome (721787127).

The spelling of 121641006 in words is "one hundred twenty-one million, six hundred forty-one thousand, six".