916278541 has 2 divisors, whose sum is σ = 916278542. Its totient is φ = 916278540.

The previous prime is 916278523. The next prime is 916278547. The reversal of 916278541 is 145872619.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 878885316 + 37393225 = 29646^2 + 6115^2 .

It is an emirp because it is prime and its reverse (145872619) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 916278541 - 2⁵ = 916278509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (916278547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458139270 + 458139271.

It is an arithmetic number, because the mean of its divisors is an integer number (458139271).

Almost surely, 2^916278541 is an apocalyptic number.

It is an amenable number.

916278541 is a deficient number, since it is larger than the sum of its proper divisors (1).

916278541 is an equidigital number, since it uses as much as digits as its factorization.

916278541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 43.

The square root of 916278541 is about 30270.0931779207. The cubic root of 916278541 is about 971.2756592843.

The spelling of 916278541 in words is "nine hundred sixteen million, two hundred seventy-eight thousand, five hundred forty-one".