120540145 has 16 divisors (see below), whose sum is σ = 159049728. Its totient is φ = 86970240.

The previous prime is 120540143. The next prime is 120540193. The reversal of 120540145 is 541045021.

It is not a de Polignac number, because 120540145 - 2¹ = 120540143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120540143) 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 15 ways as a sum of consecutive naturals, for example, 1644 + ... + 15613.

It is an arithmetic number, because the mean of its divisors is an integer number (9940608).

Almost surely, 2^120540145 is an apocalyptic number.

It is an amenable number.

120540145 is a deficient number, since it is larger than the sum of its proper divisors (38509583).

120540145 is a wasteful number, since it uses less digits than its factorization.

120540145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17400.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 120540145 is about 10979.0776024218. The cubic root of 120540145 is about 493.9813695324.

Adding to 120540145 its reverse (541045021), we get a palindrome (661585166).

The spelling of 120540145 in words is "one hundred twenty million, five hundred forty thousand, one hundred forty-five".