121242485 has 32 divisors (see below), whose sum is σ = 181386240. Its totient is φ = 75748608.

The previous prime is 121242481. The next prime is 121242491. The reversal of 121242485 is 584242121.

It is not a de Polignac number, because 121242485 - 2² = 121242481 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121242481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34259 + ... + 37631.

It is an arithmetic number, because the mean of its divisors is an integer number (5668320).

Almost surely, 2^121242485 is an apocalyptic number.

It is an amenable number.

121242485 is a deficient number, since it is larger than the sum of its proper divisors (60143755).

121242485 is a wasteful number, since it uses less digits than its factorization.

121242485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3477.

The product of its digits is 5120, while the sum is 29.

The square root of 121242485 is about 11011.0165289132. The cubic root of 121242485 is about 494.9389238659.

The spelling of 121242485 in words is "one hundred twenty-one million, two hundred forty-two thousand, four hundred eighty-five".