120512045 has 8 divisors (see below), whose sum is σ = 144695160. Its totient is φ = 96355840.

The previous prime is 120511991. The next prime is 120512107. The reversal of 120512045 is 540215021.

It can be written as a sum of positive squares in 4 ways, for example, as 434281 + 120077764 = 659^2 + 10958^2 .

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

It is not a de Polignac number, because 120512045 - 2⁶ = 120511981 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4985 + ... + 16305.

It is an arithmetic number, because the mean of its divisors is an integer number (18086895).

Almost surely, 2^120512045 is an apocalyptic number.

It is an amenable number.

120512045 is a deficient number, since it is larger than the sum of its proper divisors (24183115).

120512045 is a wasteful number, since it uses less digits than its factorization.

120512045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13455.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 120512045 is about 10977.7978210568. The cubic root of 120512045 is about 493.9429813388.

Adding to 120512045 its reverse (540215021), we get a palindrome (660727066).

The spelling of 120512045 in words is "one hundred twenty million, five hundred twelve thousand, forty-five".