120004557 has 4 divisors (see below), whose sum is σ = 160006080. Its totient is φ = 80003036.

The previous prime is 120004541. The next prime is 120004567. The reversal of 120004557 is 755400021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120004557 - 2⁴ = 120004541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120004517) 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 3 ways as a sum of consecutive naturals, for example, 20000757 + ... + 20000762.

It is an arithmetic number, because the mean of its divisors is an integer number (40001520).

Almost surely, 2^120004557 is an apocalyptic number.

It is an amenable number.

120004557 is a deficient number, since it is larger than the sum of its proper divisors (40001523).

120004557 is an equidigital number, since it uses as much as digits as its factorization.

120004557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40001522.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 120004557 is about 10954.6591457699. The cubic root of 120004557 is about 493.2486584140.

Adding to 120004557 its reverse (755400021), we get a palindrome (875404578).

The spelling of 120004557 in words is "one hundred twenty million, four thousand, five hundred fifty-seven".