120165445 has 8 divisors (see below), whose sum is σ = 145117944. Its totient is φ = 95519424.

The previous prime is 120165439. The next prime is 120165449. The reversal of 120165445 is 544561021.

It is a Cunningham number, because it is equal to 10962²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 35212356 + 84953089 = 5934^2 + 9217^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 120165445 - 2¹¹ = 120163397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120165449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75754 + ... + 77323.

It is an arithmetic number, because the mean of its divisors is an integer number (18139743).

Almost surely, 2^120165445 is an apocalyptic number.

It is an amenable number.

120165445 is a deficient number, since it is larger than the sum of its proper divisors (24952499).

120165445 is a wasteful number, since it uses less digits than its factorization.

120165445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153239.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 120165445 is about 10962.0000456121. Note that the first 4 decimals coincide. The cubic root of 120165445 is about 493.4689899136.

The spelling of 120165445 in words is "one hundred twenty million, one hundred sixty-five thousand, four hundred forty-five".