120153255 has 32 divisors (see below), whose sum is σ = 196219584. Its totient is φ = 62770176.

The previous prime is 120153251. The next prime is 120153259. The reversal of 120153255 is 552351021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (120153251) and next prime (120153259).

It is not a de Polignac number, because 120153255 - 2² = 120153251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120153251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215437 + ... + 215993.

It is an arithmetic number, because the mean of its divisors is an integer number (6131862).

Almost surely, 2^120153255 is an apocalyptic number.

120153255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120153255 is a deficient number, since it is larger than the sum of its proper divisors (76066329).

120153255 is a wasteful number, since it uses less digits than its factorization.

120153255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 120153255 is about 10961.4440198361. Note that the first 3 decimals coincide. The cubic root of 120153255 is about 493.4523029467.

The spelling of 120153255 in words is "one hundred twenty million, one hundred fifty-three thousand, two hundred fifty-five".