916515097 has 2 divisors, whose sum is σ = 916515098. Its totient is φ = 916515096.

The previous prime is 916515023. The next prime is 916515139. The reversal of 916515097 is 790515619.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 898740441 + 17774656 = 29979^2 + 4216^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-916515097 is a prime.

It is not a weakly prime, because it can be changed into another prime (916515497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458257548 + 458257549.

It is an arithmetic number, because the mean of its divisors is an integer number (458257549).

Almost surely, 2^916515097 is an apocalyptic number.

It is an amenable number.

916515097 is a deficient number, since it is larger than the sum of its proper divisors (1).

916515097 is an equidigital number, since it uses as much as digits as its factorization.

916515097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 85050, while the sum is 43.

The square root of 916515097 is about 30274.0003468323. Note that the first 3 decimals coincide. The cubic root of 916515097 is about 971.3592369684.

The spelling of 916515097 in words is "nine hundred sixteen million, five hundred fifteen thousand, ninety-seven".