120406655 has 8 divisors (see below), whose sum is σ = 145022784. Its totient is φ = 95968800.

The previous prime is 120406651. The next prime is 120406661. The reversal of 120406655 is 556604021.

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

It is not a de Polignac number, because 120406655 - 2² = 120406651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120406651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43076 + ... + 45785.

It is an arithmetic number, because the mean of its divisors is an integer number (18127848).

Almost surely, 2^120406655 is an apocalyptic number.

120406655 is a deficient number, since it is larger than the sum of its proper divisors (24616129).

120406655 is an equidigital number, since it uses as much as digits as its factorization.

120406655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89137.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 120406655 is about 10972.9966280866. The cubic root of 120406655 is about 493.7989519377.

The spelling of 120406655 in words is "one hundred twenty million, four hundred six thousand, six hundred fifty-five".