121538626 has 8 divisors (see below), whose sum is σ = 198881424. Its totient is φ = 55244820.

The previous prime is 121538617. The next prime is 121538633. The reversal of 121538626 is 626835121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 121538591 and 121538600.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2762220 + ... + 2762263.

It is an arithmetic number, because the mean of its divisors is an integer number (24860178).

Almost surely, 2^121538626 is an apocalyptic number.

121538626 is a deficient number, since it is larger than the sum of its proper divisors (77342798).

121538626 is a wasteful number, since it uses less digits than its factorization.

121538626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5524496.

The product of its digits is 17280, while the sum is 34.

The square root of 121538626 is about 11024.4558142341. The cubic root of 121538626 is about 495.3415674695.

The spelling of 121538626 in words is "one hundred twenty-one million, five hundred thirty-eight thousand, six hundred twenty-six".