120442455 has 24 divisors (see below), whose sum is σ = 238591392. Its totient is φ = 55059264.

The previous prime is 120442453. The next prime is 120442457. The reversal of 120442455 is 554244021.

120442455 is a `hidden beast` number, since 1 + 204 + 4 + 2 + 455 = 666.

It is an interprime number because it is at equal distance from previous prime (120442453) and next prime (120442457).

It is not a de Polignac number, because 120442455 - 2¹ = 120442453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120442453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190864 + ... + 191493.

It is an arithmetic number, because the mean of its divisors is an integer number (9941308).

Almost surely, 2^120442455 is an apocalyptic number.

120442455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120442455 is a deficient number, since it is larger than the sum of its proper divisors (118148937).

120442455 is a wasteful number, since it uses less digits than its factorization.

120442455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382375 (or 382372 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 120442455 is about 10974.6277841210. The cubic root of 120442455 is about 493.8478868041.

Adding to 120442455 its reverse (554244021), we get a palindrome (674686476).

The spelling of 120442455 in words is "one hundred twenty million, four hundred forty-two thousand, four hundred fifty-five".