918539651 has 2 divisors, whose sum is σ = 918539652. Its totient is φ = 918539650.

The previous prime is 918539603. The next prime is 918539663. The reversal of 918539651 is 156935819.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 918539651 - 2¹⁰ = 918538627 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 918539596 and 918539605.

It is not a weakly prime, because it can be changed into another prime (918539051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459269825 + 459269826.

It is an arithmetic number, because the mean of its divisors is an integer number (459269826).

Almost surely, 2^918539651 is an apocalyptic number.

918539651 is a deficient number, since it is larger than the sum of its proper divisors (1).

918539651 is an equidigital number, since it uses as much as digits as its factorization.

918539651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 291600, while the sum is 47.

The square root of 918539651 is about 30307.4190752034. The cubic root of 918539651 is about 972.0739453163.

The spelling of 918539651 in words is "nine hundred eighteen million, five hundred thirty-nine thousand, six hundred fifty-one".