120553406 has 8 divisors (see below), whose sum is σ = 187065720. Its totient is φ = 58198168.

The previous prime is 120553403. The next prime is 120553427. The reversal of 120553406 is 604355021.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120553403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1039196 + ... + 1039311.

It is an arithmetic number, because the mean of its divisors is an integer number (23383215).

Almost surely, 2^120553406 is an apocalyptic number.

120553406 is a deficient number, since it is larger than the sum of its proper divisors (66512314).

120553406 is a wasteful number, since it uses less digits than its factorization.

120553406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2078538.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 120553406 is about 10979.6815072205. The cubic root of 120553406 is about 493.9994836822. Note that the first 3 decimals are identical.

The spelling of 120553406 in words is "one hundred twenty million, five hundred fifty-three thousand, four hundred six".