4280145 has 8 divisors (see below), whose sum is σ = 6848256. Its totient is φ = 2282736.

The previous prime is 4280137. The next prime is 4280147. The reversal of 4280145 is 5410824.

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

It is not a de Polignac number, because 4280145 - 2³ = 4280137 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4280147) 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, 142657 + ... + 142686.

It is an arithmetic number, because the mean of its divisors is an integer number (856032).

Almost surely, 2^4280145 is an apocalyptic number.

It is an amenable number.

4280145 is a deficient number, since it is larger than the sum of its proper divisors (2568111).

4280145 is a wasteful number, since it uses less digits than its factorization.

4280145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285351.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 4280145 is about 2068.8511304586. The cubic root of 4280145 is about 162.3626610793.

Adding to 4280145 its reverse (5410824), we get a palindrome (9690969).

The spelling of 4280145 in words is "four million, two hundred eighty thousand, one hundred forty-five".