4200145 has 8 divisors (see below), whose sum is σ = 5259456. Its totient is φ = 3213936.

The previous prime is 4200143. The next prime is 4200149. The reversal of 4200145 is 5410024.

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 4200145 - 2¹ = 4200143 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4200143) 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, 18147 + ... + 18376.

It is an arithmetic number, because the mean of its divisors is an integer number (657432).

Almost surely, 2^4200145 is an apocalyptic number.

It is an amenable number.

4200145 is a deficient number, since it is larger than the sum of its proper divisors (1059311).

4200145 is a wasteful number, since it uses less digits than its factorization.

4200145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36551.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 4200145 is about 2049.4255292642. The cubic root of 4200145 is about 161.3447213045.

Adding to 4200145 its reverse (5410024), we get a palindrome (9610169).

The spelling of 4200145 in words is "four million, two hundred thousand, one hundred forty-five".