4203145 has 8 divisors (see below), whose sum is σ = 5059080. Its totient is φ = 3352320.

The previous prime is 4203139. The next prime is 4203169. The reversal of 4203145 is 5413024.

It can be written as a sum of positive squares in 4 ways, for example, as 251001 + 3952144 = 501^2 + 1988^2 .

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

It is not a de Polignac number, because 4203145 - 2⁵ = 4203113 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 865 + ... + 3025.

It is an arithmetic number, because the mean of its divisors is an integer number (632385).

Almost surely, 2^4203145 is an apocalyptic number.

It is an amenable number.

4203145 is a deficient number, since it is larger than the sum of its proper divisors (855935).

4203145 is a wasteful number, since it uses less digits than its factorization.

4203145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2555.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 4203145 is about 2050.1573110374. The cubic root of 4203145 is about 161.3831262459.

Adding to 4203145 its reverse (5413024), we get a palindrome (9616169).

The spelling of 4203145 in words is "four million, two hundred three thousand, one hundred forty-five".