919013 has 2 divisors, whose sum is σ = 919014. Its totient is φ = 919012.

The previous prime is 918989. The next prime is 919019. The reversal of 919013 is 310919.

919013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 550564 + 368449 = 742^2 + 607^2 .

It is a cyclic number.

It is not a de Polignac number, because 919013 - 2⁶ = 918949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 919013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (919019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459506 + 459507.

It is an arithmetic number, because the mean of its divisors is an integer number (459507).

2⁹¹⁹⁰¹³ is an apocalyptic number.

It is an amenable number.

919013 is a deficient number, since it is larger than the sum of its proper divisors (1).

919013 is an equidigital number, since it uses as much as digits as its factorization.

919013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 243, while the sum is 23.

The square root of 919013 is about 958.6516572770. The cubic root of 919013 is about 97.2240895545.

The spelling of 919013 in words is "nine hundred nineteen thousand, thirteen".