918319 has 2 divisors, whose sum is σ = 918320. Its totient is φ = 918318.

The previous prime is 918301. The next prime is 918329. The reversal of 918319 is 913819.

918319 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 is a cyclic number.

It is not a de Polignac number, because 918319 - 2¹³ = 910127 is a prime.

It is a super-2 number, since 2×918319² = 1686619571522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (918329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459159 + 459160.

It is an arithmetic number, because the mean of its divisors is an integer number (459160).

2⁹¹⁸³¹⁹ is an apocalyptic number.

918319 is a deficient number, since it is larger than the sum of its proper divisors (1).

918319 is an equidigital number, since it uses as much as digits as its factorization.

918319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 31.

The square root of 918319 is about 958.2896221915. The cubic root of 918319 is about 97.1996102092.

The spelling of 918319 in words is "nine hundred eighteen thousand, three hundred nineteen".