4281913 has 2 divisors, whose sum is σ = 4281914. Its totient is φ = 4281912.

The previous prime is 4281911. The next prime is 4281931. The reversal of 4281913 is 3191824.

It is a happy number.

Together with next prime (4281931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3888784 + 393129 = 1972^2 + 627^2 .

It is a cyclic number.

It is not a de Polignac number, because 4281913 - 2¹ = 4281911 is a prime.

Together with 4281911, it forms a pair of twin primes.

It is an Ulam number.

4281913 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4281911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2140956 + 2140957.

It is an arithmetic number, because the mean of its divisors is an integer number (2140957).

Almost surely, 2^4281913 is an apocalyptic number.

It is an amenable number.

4281913 is a deficient number, since it is larger than the sum of its proper divisors (1).

4281913 is an equidigital number, since it uses as much as digits as its factorization.

4281913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 28.

The square root of 4281913 is about 2069.2783766328. The cubic root of 4281913 is about 162.3850137230.

The spelling of 4281913 in words is "four million, two hundred eighty-one thousand, nine hundred thirteen".