121746225 has 12 divisors (see below), whose sum is σ = 201287216. Its totient is φ = 64931280.

The previous prime is 121746221. The next prime is 121746227. The reversal of 121746225 is 522647121.

It is not a de Polignac number, because 121746225 - 2² = 121746221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121746192 and 121746201.

It is not an unprimeable number, because it can be changed into a prime (121746221) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 811567 + ... + 811716.

Almost surely, 2^121746225 is an apocalyptic number.

121746225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121746225 is a deficient number, since it is larger than the sum of its proper divisors (79540991).

121746225 is a wasteful number, since it uses less digits than its factorization.

121746225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623296 (or 1623291 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 121746225 is about 11033.8671824524. The cubic root of 121746225 is about 495.6234364904.

The spelling of 121746225 in words is "one hundred twenty-one million, seven hundred forty-six thousand, two hundred twenty-five".