121625126 has 16 divisors (see below), whose sum is σ = 209585184. Its totient is φ = 51853824.

The previous prime is 121625117. The next prime is 121625209. The reversal of 121625126 is 621526121.

It is a junction number, because it is equal to n+sod(n) for n = 121625095 and 121625104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19805 + ... + 25208.

It is an arithmetic number, because the mean of its divisors is an integer number (13099074).

Almost surely, 2^121625126 is an apocalyptic number.

121625126 is a deficient number, since it is larger than the sum of its proper divisors (87960058).

121625126 is a wasteful number, since it uses less digits than its factorization.

121625126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45215.

The product of its digits is 1440, while the sum is 26.

The square root of 121625126 is about 11028.3782125932. The cubic root of 121625126 is about 495.4590524375.

The spelling of 121625126 in words is "one hundred twenty-one million, six hundred twenty-five thousand, one hundred twenty-six".