121658044 has 12 divisors (see below), whose sum is σ = 214258744. Its totient is φ = 60441264.

The previous prime is 121658041. The next prime is 121658071. The reversal of 121658044 is 440856121.

It is a junction number, because it is equal to n+sod(n) for n = 121657997 and 121658015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121658041) 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 3 ways as a sum of consecutive naturals, for example, 96234 + ... + 97489.

Almost surely, 2^121658044 is an apocalyptic number.

It is an amenable number.

121658044 is a deficient number, since it is larger than the sum of its proper divisors (92600700).

121658044 is a wasteful number, since it uses less digits than its factorization.

121658044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193884 (or 193882 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 121658044 is about 11029.8705341450. The cubic root of 121658044 is about 495.5037472865.

The spelling of 121658044 in words is "one hundred twenty-one million, six hundred fifty-eight thousand, forty-four".