120320145 has 48 divisors (see below), whose sum is σ = 234883584. Its totient is φ = 56448000.

The previous prime is 120320111. The next prime is 120320173. The reversal of 120320145 is 541023021.

It is not a de Polignac number, because 120320145 - 2¹⁶ = 120254609 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11425 + ... + 19265.

It is an arithmetic number, because the mean of its divisors is an integer number (4893408).

Almost surely, 2^120320145 is an apocalyptic number.

120320145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120320145 is a deficient number, since it is larger than the sum of its proper divisors (114563439).

120320145 is a wasteful number, since it uses less digits than its factorization.

120320145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7894 (or 7891 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 120320145 is about 10969.0539701471. The cubic root of 120320145 is about 493.6806617367.

Adding to 120320145 its reverse (541023021), we get a palindrome (661343166).

The spelling of 120320145 in words is "one hundred twenty million, three hundred twenty thousand, one hundred forty-five".