121625786 has 16 divisors (see below), whose sum is σ = 196447680. Its totient is φ = 56264640.

The previous prime is 121625773. The next prime is 121625789. The reversal of 121625786 is 687526121.

It is not an unprimeable number, because it can be changed into a prime (121625789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28310 + ... + 32321.

It is an arithmetic number, because the mean of its divisors is an integer number (12277980).

Almost surely, 2^121625786 is an apocalyptic number.

121625786 is a deficient number, since it is larger than the sum of its proper divisors (74821894).

121625786 is a wasteful number, since it uses less digits than its factorization.

121625786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60709.

The product of its digits is 40320, while the sum is 38.

The square root of 121625786 is about 11028.4081353566. The cubic root of 121625786 is about 495.4599486404.

The spelling of 121625786 in words is "one hundred twenty-one million, six hundred twenty-five thousand, seven hundred eighty-six".