121325505 has 32 divisors (see below), whose sum is σ = 222265344. Its totient is φ = 55359936.

The previous prime is 121325497. The next prime is 121325521. The reversal of 121325505 is 505523121.

It is a happy number.

It is not a de Polignac number, because 121325505 - 2³ = 121325497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111072 + ... + 112158.

It is an arithmetic number, because the mean of its divisors is an integer number (6945792).

Almost surely, 2^121325505 is an apocalyptic number.

121325505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121325505 is a deficient number, since it is larger than the sum of its proper divisors (100939839).

121325505 is a wasteful number, since it uses less digits than its factorization.

121325505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 121325505 is about 11014.7857446253. The cubic root of 121325505 is about 495.0518668231.

Adding to 121325505 its reverse (505523121), we get a palindrome (626848626).

The spelling of 121325505 in words is "one hundred twenty-one million, three hundred twenty-five thousand, five hundred five".