120134553 has 16 divisors (see below), whose sum is σ = 199704576. Its totient is φ = 62407440.

The previous prime is 120134533. The next prime is 120134639. The reversal of 120134553 is 355431021.

It is not a de Polignac number, because 120134553 - 2⁶ = 120134489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120134513) 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, 259801 + ... + 260262.

It is an arithmetic number, because the mean of its divisors is an integer number (12481536).

Almost surely, 2^120134553 is an apocalyptic number.

It is an amenable number.

120134553 is a deficient number, since it is larger than the sum of its proper divisors (79570023).

120134553 is a wasteful number, since it uses less digits than its factorization.

120134553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520084.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 120134553 is about 10960.5909056036. The cubic root of 120134553 is about 493.4266994683.

Adding to 120134553 its reverse (355431021), we get a palindrome (475565574).

The spelling of 120134553 in words is "one hundred twenty million, one hundred thirty-four thousand, five hundred fifty-three".