120501145 has 4 divisors (see below), whose sum is σ = 144601380. Its totient is φ = 96400912.

The previous prime is 120501137. The next prime is 120501167. The reversal of 120501145 is 541105021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541105021 = 2531 ⋅213791.

It can be written as a sum of positive squares in 2 ways, for example, as 34234201 + 86266944 = 5851^2 + 9288^2 .

It is a cyclic number.

It is not a de Polignac number, because 120501145 - 2³ = 120501137 is a prime.

It is a super-2 number, since 2×120501145² = 29041051892622050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12050110 + ... + 12050119.

It is an arithmetic number, because the mean of its divisors is an integer number (36150345).

Almost surely, 2^120501145 is an apocalyptic number.

It is an amenable number.

120501145 is a deficient number, since it is larger than the sum of its proper divisors (24100235).

120501145 is an equidigital number, since it uses as much as digits as its factorization.

120501145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24100234.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 120501145 is about 10977.3013532471. The cubic root of 120501145 is about 493.9280889386.

Adding to 120501145 its reverse (541105021), we get a palindrome (661606166).

The spelling of 120501145 in words is "one hundred twenty million, five hundred one thousand, one hundred forty-five".