3620145 has 8 divisors (see below), whose sum is σ = 5792256. Its totient is φ = 1930736.

The previous prime is 3620129. The next prime is 3620153. The reversal of 3620145 is 5410263.

It is a happy number.

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 3620145 - 2⁴ = 3620129 is a prime.

It is an Ulam number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120657 + ... + 120686.

It is an arithmetic number, because the mean of its divisors is an integer number (724032).

Almost surely, 2^3620145 is an apocalyptic number.

It is an amenable number.

3620145 is a deficient number, since it is larger than the sum of its proper divisors (2172111).

3620145 is a wasteful number, since it uses less digits than its factorization.

3620145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241351.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 3620145 is about 1902.6678638165. The cubic root of 3620145 is about 153.5472308832.

The spelling of 3620145 in words is "three million, six hundred twenty thousand, one hundred forty-five".