4251481 has 16 divisors (see below), whose sum is σ = 4878720. Its totient is φ = 3674880.

The previous prime is 4251463. The next prime is 4251491. The reversal of 4251481 is 1841524.

It is a cyclic number.

It is not a de Polignac number, because 4251481 - 2⁵ = 4251449 is a prime.

It is a super-2 number, since 2×4251481² = 36150181386722, which contains 22 as substring.

It is a Duffinian number.

4251481 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4251451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17521 + ... + 17761.

It is an arithmetic number, because the mean of its divisors is an integer number (304920).

Almost surely, 2^4251481 is an apocalyptic number.

It is an amenable number.

4251481 is a deficient number, since it is larger than the sum of its proper divisors (627239).

4251481 is a wasteful number, since it uses less digits than its factorization.

4251481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336.

The product of its digits is 1280, while the sum is 25.

The square root of 4251481 is about 2061.9119767827. The cubic root of 4251481 is about 161.9994030360. Note that the first 3 decimals are identical.

The spelling of 4251481 in words is "four million, two hundred fifty-one thousand, four hundred eighty-one".