918381041 has 2 divisors, whose sum is σ = 918381042. Its totient is φ = 918381040.

The previous prime is 918381029. The next prime is 918381073. The reversal of 918381041 is 140183819.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 725171041 + 193210000 = 26929^2 + 13900^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-918381041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 918380992 and 918381010.

It is not a weakly prime, because it can be changed into another prime (918381001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459190520 + 459190521.

It is an arithmetic number, because the mean of its divisors is an integer number (459190521).

Almost surely, 2^918381041 is an apocalyptic number.

It is an amenable number.

918381041 is a deficient number, since it is larger than the sum of its proper divisors (1).

918381041 is an equidigital number, since it uses as much as digits as its factorization.

918381041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 918381041 is about 30304.8022762070. The cubic root of 918381041 is about 972.0179907281.

The spelling of 918381041 in words is "nine hundred eighteen million, three hundred eighty-one thousand, forty-one".