120345255 has 24 divisors (see below), whose sum is σ = 215329920. Its totient is φ = 62112960.

The previous prime is 120345229. The next prime is 120345257. The reversal of 120345255 is 552543021.

It is a happy number.

120345255 is a `hidden beast` number, since 1 + 203 + 452 + 5 + 5 = 666.

It is not a de Polignac number, because 120345255 - 2¹⁵ = 120312487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120345257) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41740 + ... + 44529.

It is an arithmetic number, because the mean of its divisors is an integer number (8972080).

Almost surely, 2^120345255 is an apocalyptic number.

120345255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120345255 is a deficient number, since it is larger than the sum of its proper divisors (94984665).

120345255 is a wasteful number, since it uses less digits than its factorization.

120345255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86311 (or 86308 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 120345255 is about 10970.1984941021. The cubic root of 120345255 is about 493.7150019524.

Adding to 120345255 its reverse (552543021), we get a palindrome (672888276).

The spelling of 120345255 in words is "one hundred twenty million, three hundred forty-five thousand, two hundred fifty-five".