120434553 has 16 divisors (see below), whose sum is σ = 178729600. Its totient is φ = 80151120.

The previous prime is 120434527. The next prime is 120434563. The reversal of 120434553 is 355434021.

120434553 is a `hidden beast` number, since 1 + 204 + 3 + 455 + 3 = 666.

It is not a de Polignac number, because 120434553 - 2²⁰ = 119385977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120434513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13503 + ... + 20571.

It is an arithmetic number, because the mean of its divisors is an integer number (11170600).

Almost surely, 2^120434553 is an apocalyptic number.

It is an amenable number.

120434553 is a deficient number, since it is larger than the sum of its proper divisors (58295047).

120434553 is an equidigital number, since it uses as much as digits as its factorization.

120434553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7709 (or 7703 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 120434553 is about 10974.2677660061. The cubic root of 120434553 is about 493.8370864282.

Adding to 120434553 its reverse (355434021), we get a palindrome (475868574).

The spelling of 120434553 in words is "one hundred twenty million, four hundred thirty-four thousand, five hundred fifty-three".