120455403 has 8 divisors (see below), whose sum is σ = 163329600. Its totient is φ = 78942408.

The previous prime is 120455381. The next prime is 120455411. The reversal of 120455403 is 304554021.

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

It is not a de Polignac number, because 120455403 - 2⁸ = 120455147 is a prime.

It is a super-2 number, since 2×120455403² = 29019008223784818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120455443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340093 + ... + 340446.

It is an arithmetic number, because the mean of its divisors is an integer number (20416200).

Almost surely, 2^120455403 is an apocalyptic number.

120455403 is a deficient number, since it is larger than the sum of its proper divisors (42874197).

120455403 is an equidigital number, since it uses as much as digits as its factorization.

120455403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680601.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 120455403 is about 10975.2176743789. The cubic root of 120455403 is about 493.8655829819.

The spelling of 120455403 in words is "one hundred twenty million, four hundred fifty-five thousand, four hundred three".