4501381 has 2 divisors, whose sum is σ = 4501382. Its totient is φ = 4501380.

The previous prime is 4501333. The next prime is 4501391. The reversal of 4501381 is 1831054.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3629025 + 872356 = 1905^2 + 934^2 .

It is a cyclic number.

It is not a de Polignac number, because 4501381 - 2¹⁵ = 4468613 is a prime.

It is a super-2 number, since 2×4501381² = 40524861814322, which contains 22 as substring.

4501381 is a lucky number.

It is equal to p₃₁₆₀₃₉ and since 4501381 and 316039 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4501391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2250690 + 2250691.

It is an arithmetic number, because the mean of its divisors is an integer number (2250691).

Almost surely, 2^4501381 is an apocalyptic number.

It is an amenable number.

4501381 is a deficient number, since it is larger than the sum of its proper divisors (1).

4501381 is an equidigital number, since it uses as much as digits as its factorization.

4501381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 4501381 is about 2121.6458234116. The cubic root of 4501381 is about 165.1132494638.

The spelling of 4501381 in words is "four million, five hundred one thousand, three hundred eighty-one".