9494161121 has 2 divisors, whose sum is σ = 9494161122. Its totient is φ = 9494161120.

The previous prime is 9494161111. The next prime is 9494161123. The reversal of 9494161121 is 1211614949.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6058442896 + 3435718225 = 77836^2 + 58615^2 .

It is an emirp because it is prime and its reverse (1211614949) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9494161121 - 2⁶ = 9494161057 is a prime.

Together with 9494161123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9494161123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4747080560 + 4747080561.

It is an arithmetic number, because the mean of its divisors is an integer number (4747080561).

Almost surely, 2^9494161121 is an apocalyptic number.

It is an amenable number.

9494161121 is a deficient number, since it is larger than the sum of its proper divisors (1).

9494161121 is an equidigital number, since it uses as much as digits as its factorization.

9494161121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 38.

The square root of 9494161121 is about 97437.9860270110. The cubic root of 9494161121 is about 2117.4778003710.

The spelling of 9494161121 in words is "nine billion, four hundred ninety-four million, one hundred sixty-one thousand, one hundred twenty-one".