916105549 has 2 divisors, whose sum is σ = 916105550. Its totient is φ = 916105548.

The previous prime is 916105511. The next prime is 916105559. The reversal of 916105549 is 945501619.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 874089225 + 42016324 = 29565^2 + 6482^2 .

It is a cyclic number.

It is not a de Polignac number, because 916105549 - 2²¹ = 914008397 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (916105559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458052774 + 458052775.

It is an arithmetic number, because the mean of its divisors is an integer number (458052775).

Almost surely, 2^916105549 is an apocalyptic number.

It is an amenable number.

916105549 is a deficient number, since it is larger than the sum of its proper divisors (1).

916105549 is an equidigital number, since it uses as much as digits as its factorization.

916105549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 40.

The square root of 916105549 is about 30267.2355691761. The cubic root of 916105549 is about 971.2145303130.

The spelling of 916105549 in words is "nine hundred sixteen million, one hundred five thousand, five hundred forty-nine".