121045404 has 12 divisors (see below), whose sum is σ = 282439304. Its totient is φ = 40348464.

The previous prime is 121045381. The next prime is 121045417. The reversal of 121045404 is 404540121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5043547 + ... + 5043570.

Almost surely, 2^121045404 is an apocalyptic number.

It is an amenable number.

121045404 is an abundant number, since it is smaller than the sum of its proper divisors (161393900).

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

121045404 is a wasteful number, since it uses less digits than its factorization.

121045404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10087124 (or 10087122 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 121045404 is about 11002.0636246115. The cubic root of 121045404 is about 494.6706021956.

Adding to 121045404 its reverse (404540121), we get a palindrome (525585525).

The spelling of 121045404 in words is "one hundred twenty-one million, forty-five thousand, four hundred four".