121104645 has 16 divisors (see below), whose sum is σ = 193912512. Its totient is φ = 64540800.

The previous prime is 121104587. The next prime is 121104691. The reversal of 121104645 is 546401121.

It is a happy number.

It is not a de Polignac number, because 121104645 - 2⁷ = 121104517 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27870 + ... + 31920.

It is an arithmetic number, because the mean of its divisors is an integer number (12119532).

Almost surely, 2^121104645 is an apocalyptic number.

121104645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121104645 is a deficient number, since it is larger than the sum of its proper divisors (72807867).

121104645 is a wasteful number, since it uses less digits than its factorization.

121104645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6052.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 121104645 is about 11004.7555629373. The cubic root of 121104645 is about 494.7512881773.

Adding to 121104645 its reverse (546401121), we get a palindrome (667505766).

The spelling of 121104645 in words is "one hundred twenty-one million, one hundred four thousand, six hundred forty-five".