9141914561 has 12 divisors (see below), whose sum is σ = 9917107452. Its totient is φ = 8423453376.

The previous prime is 9141914513. The next prime is 9141914599. The reversal of 9141914561 is 1654191419.

It can be written as a sum of positive squares in 6 ways, for example, as 1593606400 + 7548308161 = 39920^2 + 86881^2 .

It is not a de Polignac number, because 9141914561 - 2⁶ = 9141914497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9141914161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45575 + ... + 142691.

It is an arithmetic number, because the mean of its divisors is an integer number (826425621).

Almost surely, 2^9141914561 is an apocalyptic number.

It is an amenable number.

9141914561 is a deficient number, since it is larger than the sum of its proper divisors (775192891).

9141914561 is a wasteful number, since it uses less digits than its factorization.

9141914561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97700 (or 97687 counting only the distinct ones).

The product of its digits is 38880, while the sum is 41.

The square root of 9141914561 is about 95613.3597411993. The cubic root of 9141914561 is about 2090.9599735965.

The spelling of 9141914561 in words is "nine billion, one hundred forty-one million, nine hundred fourteen thousand, five hundred sixty-one".